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Finding the Fourth Proportional to 28,382.95, 42,579.60 and 9,662.10

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Solution

The fourth proportional to 28,382.95, 42,579.60 and 9,662.10 is: 14,494.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382.95 : 42,579.60 = 9,662.10 : x
  2. Step 2: Convert to fraction form
    28,382.95/42,579.60 = 9,662.10/x
  3. Step 3: Cross multiply
    28,382.95x = 42,579.60 × 9,662.10
  4. Step 4: Simplify right side
    28,382.95x = 411,408,140.26
  5. Step 5: Solve for x
    x = 411,408,140.26/28,382.95
  6. Step 6: Final answer
    x = 14,494.90

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