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Finding the Fourth Proportional to 78,199.40, 117,299.28 and 19,034.96

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Solution

The fourth proportional to 78,199.40, 117,299.28 and 19,034.96 is: 28,552.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,199.40 : 117,299.28 = 19,034.96 : x
  2. Step 2: Convert to fraction form
    78,199.40/117,299.28 = 19,034.96/x
  3. Step 3: Cross multiply
    78,199.40x = 117,299.28 × 19,034.96
  4. Step 4: Simplify right side
    78,199.40x = 2,232,787,102.83
  5. Step 5: Solve for x
    x = 2,232,787,102.83/78,199.40
  6. Step 6: Final answer
    x = 28,552.48

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