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Finding the Fourth Proportional to 64,485.12, 96,728.16 and 17,740.56

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Solution

The fourth proportional to 64,485.12, 96,728.16 and 17,740.56 is: 26,610.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,485.12 : 96,728.16 = 17,740.56 : x
  2. Step 2: Convert to fraction form
    64,485.12/96,728.16 = 17,740.56/x
  3. Step 3: Cross multiply
    64,485.12x = 96,728.16 × 17,740.56
  4. Step 4: Simplify right side
    64,485.12x = 1,716,011,726.17
  5. Step 5: Solve for x
    x = 1,716,011,726.17/64,485.12
  6. Step 6: Final answer
    x = 26,610.97

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