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Finding the Fourth Proportional to 61,978.64, 92,916.14 and 28,722.54

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Solution

The fourth proportional to 61,978.64, 92,916.14 and 28,722.54 is: 43,059.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,978.64 : 92,916.14 = 28,722.54 : x
  2. Step 2: Convert to fraction form
    61,978.64/92,916.14 = 28,722.54/x
  3. Step 3: Cross multiply
    61,978.64x = 92,916.14 × 28,722.54
  4. Step 4: Simplify right side
    61,978.64x = 2,668,787,547.80
  5. Step 5: Solve for x
    x = 2,668,787,547.80/61,978.64
  6. Step 6: Final answer
    x = 43,059.80

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