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Finding the Fourth Proportional to 105,802.42, 145,984.52 and 61,064.50

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Solution

The fourth proportional to 105,802.42, 145,984.52 and 61,064.50 is: 84,255.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,802.42 : 145,984.52 = 61,064.50 : x
  2. Step 2: Convert to fraction form
    105,802.42/145,984.52 = 61,064.50/x
  3. Step 3: Cross multiply
    105,802.42x = 145,984.52 × 61,064.50
  4. Step 4: Simplify right side
    105,802.42x = 8,914,471,721.54
  5. Step 5: Solve for x
    x = 8,914,471,721.54/105,802.42
  6. Step 6: Final answer
    x = 84,255.84

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