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Finding the Fourth Proportional to 104,428.32, 144,107.22 and 56,680.65

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Solution

The fourth proportional to 104,428.32, 144,107.22 and 56,680.65 is: 78,217.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,428.32 : 144,107.22 = 56,680.65 : x
  2. Step 2: Convert to fraction form
    104,428.32/144,107.22 = 56,680.65/x
  3. Step 3: Cross multiply
    104,428.32x = 144,107.22 × 56,680.65
  4. Step 4: Simplify right side
    104,428.32x = 8,168,090,899.29
  5. Step 5: Solve for x
    x = 8,168,090,899.29/104,428.32
  6. Step 6: Final answer
    x = 78,217.20

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