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Finding the Fourth Proportional to 78,416.80, 117,428.10 and 60,898.84

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Solution

The fourth proportional to 78,416.80, 117,428.10 and 60,898.84 is: 91,195.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,416.80 : 117,428.10 = 60,898.84 : x
  2. Step 2: Convert to fraction form
    78,416.80/117,428.10 = 60,898.84/x
  3. Step 3: Cross multiply
    78,416.80x = 117,428.10 × 60,898.84
  4. Step 4: Simplify right side
    78,416.80x = 7,151,235,073.40
  5. Step 5: Solve for x
    x = 7,151,235,073.40/78,416.80
  6. Step 6: Final answer
    x = 91,195.19

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