Finding the Fourth Proportional to 102,471.59, 141,411.57 and 57,152.54

Step by Step Solution

1. Step 1: Write the proportion equation
   102,471.59 : 141,411.57 = 57,152.54 : x
2. Step 2: Convert to fraction form
   102,471.59/141,411.57 = 57,152.54/x
3. Step 3: Cross multiply
   102,471.59x = 141,411.57 × 57,152.54
4. Step 4: Simplify right side
   102,471.59x = 8,082,030,410.89
5. Step 5: Solve for x
   x = 8,082,030,410.89/102,471.59
6. Step 6: Final answer
   x = 78,870.94