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Finding the Fourth Proportional to 59,681.28, 89,462.16 and 28,538.40

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Solution

The fourth proportional to 59,681.28, 89,462.16 and 28,538.40 is: 42,779.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,681.28 : 89,462.16 = 28,538.40 : x
  2. Step 2: Convert to fraction form
    59,681.28/89,462.16 = 28,538.40/x
  3. Step 3: Cross multiply
    59,681.28x = 89,462.16 × 28,538.40
  4. Step 4: Simplify right side
    59,681.28x = 2,553,106,906.94
  5. Step 5: Solve for x
    x = 2,553,106,906.94/59,681.28
  6. Step 6: Final answer
    x = 42,779.02

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