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Finding the Fourth Proportional to 358,728.44, 538,123.64 and 92,486.70

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Solution

The fourth proportional to 358,728.44, 538,123.64 and 92,486.70 is: 138,738.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,728.44 : 538,123.64 = 92,486.70 : x
  2. Step 2: Convert to fraction form
    358,728.44/538,123.64 = 92,486.70/x
  3. Step 3: Cross multiply
    358,728.44x = 538,123.64 × 92,486.70
  4. Step 4: Simplify right side
    358,728.44x = 49,769,279,193.15
  5. Step 5: Solve for x
    x = 49,769,279,193.15/358,728.44
  6. Step 6: Final answer
    x = 138,738.04

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