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Finding the Fourth Proportional to 14,574.40, 21,815.52 and 10,400.96

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Solution

The fourth proportional to 14,574.40, 21,815.52 and 10,400.96 is: 15,568.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,574.40 : 21,815.52 = 10,400.96 : x
  2. Step 2: Convert to fraction form
    14,574.40/21,815.52 = 10,400.96/x
  3. Step 3: Cross multiply
    14,574.40x = 21,815.52 × 10,400.96
  4. Step 4: Simplify right side
    14,574.40x = 226,902,350.90
  5. Step 5: Solve for x
    x = 226,902,350.90/14,574.40
  6. Step 6: Final answer
    x = 15,568.56

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