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Finding the Fourth Proportional to 75,584.80, 113,420.40 and 28,871.20

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Solution

The fourth proportional to 75,584.80, 113,420.40 and 28,871.20 is: 43,323.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,584.80 : 113,420.40 = 28,871.20 : x
  2. Step 2: Convert to fraction form
    75,584.80/113,420.40 = 28,871.20/x
  3. Step 3: Cross multiply
    75,584.80x = 113,420.40 × 28,871.20
  4. Step 4: Simplify right side
    75,584.80x = 3,274,583,052.48
  5. Step 5: Solve for x
    x = 3,274,583,052.48/75,584.80
  6. Step 6: Final answer
    x = 43,323.30

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