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Finding the Fourth Proportional to 57,783.80, 86,618.10 and 26,564.60

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Solution

The fourth proportional to 57,783.80, 86,618.10 and 26,564.60 is: 39,820.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,783.80 : 86,618.10 = 26,564.60 : x
  2. Step 2: Convert to fraction form
    57,783.80/86,618.10 = 26,564.60/x
  3. Step 3: Cross multiply
    57,783.80x = 86,618.10 × 26,564.60
  4. Step 4: Simplify right side
    57,783.80x = 2,300,975,179.26
  5. Step 5: Solve for x
    x = 2,300,975,179.26/57,783.80
  6. Step 6: Final answer
    x = 39,820.42

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