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Finding the Fourth Proportional to 78,390.29, 117,593.21 and 25,068.87

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Solution

The fourth proportional to 78,390.29, 117,593.21 and 25,068.87 is: 37,605.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,390.29 : 117,593.21 = 25,068.87 : x
  2. Step 2: Convert to fraction form
    78,390.29/117,593.21 = 25,068.87/x
  3. Step 3: Cross multiply
    78,390.29x = 117,593.21 × 25,068.87
  4. Step 4: Simplify right side
    78,390.29x = 2,947,928,957.04
  5. Step 5: Solve for x
    x = 2,947,928,957.04/78,390.29
  6. Step 6: Final answer
    x = 37,605.79

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