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Finding the Fourth Proportional to 13,236.52, 19,815.90 and 10,443.64

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Solution

The fourth proportional to 13,236.52, 19,815.90 and 10,443.64 is: 15,634.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.52 : 19,815.90 = 10,443.64 : x
  2. Step 2: Convert to fraction form
    13,236.52/19,815.90 = 10,443.64/x
  3. Step 3: Cross multiply
    13,236.52x = 19,815.90 × 10,443.64
  4. Step 4: Simplify right side
    13,236.52x = 206,950,125.88
  5. Step 5: Solve for x
    x = 206,950,125.88/13,236.52
  6. Step 6: Final answer
    x = 15,634.78

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