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Finding the Fourth Proportional to 27,775.56, 41,664.12 and 12,189.60

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Solution

The fourth proportional to 27,775.56, 41,664.12 and 12,189.60 is: 18,284.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,775.56 : 41,664.12 = 12,189.60 : x
  2. Step 2: Convert to fraction form
    27,775.56/41,664.12 = 12,189.60/x
  3. Step 3: Cross multiply
    27,775.56x = 41,664.12 × 12,189.60
  4. Step 4: Simplify right side
    27,775.56x = 507,868,957.15
  5. Step 5: Solve for x
    x = 507,868,957.15/27,775.56
  6. Step 6: Final answer
    x = 18,284.74

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