Finding the Fourth Proportional to 102,383.52, 141,361.23 and 71,821.54

Step by Step Solution

1. Step 1: Write the proportion equation
   102,383.52 : 141,361.23 = 71,821.54 : x
2. Step 2: Convert to fraction form
   102,383.52/141,361.23 = 71,821.54/x
3. Step 3: Cross multiply
   102,383.52x = 141,361.23 × 71,821.54
4. Step 4: Simplify right side
   102,383.52x = 10,152,781,234.89
5. Step 5: Solve for x
   x = 10,152,781,234.89/102,383.52
6. Step 6: Final answer
   x = 99,164.21