Finding the Fourth Proportional to 102,048.16, 140,825.52 and 56,725

Step by Step Solution

1. Step 1: Write the proportion equation
   102,048.16 : 140,825.52 = 56,725 : x
2. Step 2: Convert to fraction form
   102,048.16/140,825.52 = 56,725/x
3. Step 3: Cross multiply
   102,048.16x = 140,825.52 × 56,725
4. Step 4: Simplify right side
   102,048.16x = 7,988,327,622.00
5. Step 5: Solve for x
   x = 7,988,327,622.00/102,048.16
6. Step 6: Final answer
   x = 78,279.98