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Finding the Fourth Proportional to 28,568.44, 42,778.14 and 22,991.32

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Solution

The fourth proportional to 28,568.44, 42,778.14 and 22,991.32 is: 34,427.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,568.44 : 42,778.14 = 22,991.32 : x
  2. Step 2: Convert to fraction form
    28,568.44/42,778.14 = 22,991.32/x
  3. Step 3: Cross multiply
    28,568.44x = 42,778.14 × 22,991.32
  4. Step 4: Simplify right side
    28,568.44x = 983,525,905.74
  5. Step 5: Solve for x
    x = 983,525,905.74/28,568.44
  6. Step 6: Final answer
    x = 34,427.01

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