Finding the Fourth Proportional to 71,833.32, 107,654.94 and 55,129.50

Step by Step Solution

1. Step 1: Write the proportion equation
   71,833.32 : 107,654.94 = 55,129.50 : x
2. Step 2: Convert to fraction form
   71,833.32/107,654.94 = 55,129.50/x
3. Step 3: Cross multiply
   71,833.32x = 107,654.94 × 55,129.50
4. Step 4: Simplify right side
   71,833.32x = 5,934,963,014.73
5. Step 5: Solve for x
   x = 5,934,963,014.73/71,833.32
6. Step 6: Final answer
   x = 82,621.31