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Finding the Fourth Proportional to 28,523.76, 42,796.60 and 11,879.34

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Solution

The fourth proportional to 28,523.76, 42,796.60 and 11,879.34 is: 17,823.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,523.76 : 42,796.60 = 11,879.34 : x
  2. Step 2: Convert to fraction form
    28,523.76/42,796.60 = 11,879.34/x
  3. Step 3: Cross multiply
    28,523.76x = 42,796.60 × 11,879.34
  4. Step 4: Simplify right side
    28,523.76x = 508,395,362.24
  5. Step 5: Solve for x
    x = 508,395,362.24/28,523.76
  6. Step 6: Final answer
    x = 17,823.57

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