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Finding the Fourth Proportional to 358,918.16, 538,379.33 and 92,660.49

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Solution

The fourth proportional to 358,918.16, 538,379.33 and 92,660.49 is: 138,991.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,918.16 : 538,379.33 = 92,660.49 : x
  2. Step 2: Convert to fraction form
    358,918.16/538,379.33 = 92,660.49/x
  3. Step 3: Cross multiply
    358,918.16x = 538,379.33 × 92,660.49
  4. Step 4: Simplify right side
    358,918.16x = 49,886,492,060.37
  5. Step 5: Solve for x
    x = 49,886,492,060.37/358,918.16
  6. Step 6: Final answer
    x = 138,991.28

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