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Finding the Fourth Proportional to 104,428.64, 144,107.66 and 56,680.97

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Solution

The fourth proportional to 104,428.64, 144,107.66 and 56,680.97 is: 78,217.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,428.64 : 144,107.66 = 56,680.97 : x
  2. Step 2: Convert to fraction form
    104,428.64/144,107.66 = 56,680.97/x
  3. Step 3: Cross multiply
    104,428.64x = 144,107.66 × 56,680.97
  4. Step 4: Simplify right side
    104,428.64x = 8,168,161,953.23
  5. Step 5: Solve for x
    x = 8,168,161,953.23/104,428.64
  6. Step 6: Final answer
    x = 78,217.64

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