Finding the Fourth Proportional to 102,380.16, 141,282.24 and 57,058.08

Step by Step Solution

1. Step 1: Write the proportion equation
   102,380.16 : 141,282.24 = 57,058.08 : x
2. Step 2: Convert to fraction form
   102,380.16/141,282.24 = 57,058.08/x
3. Step 3: Cross multiply
   102,380.16x = 141,282.24 × 57,058.08
4. Step 4: Simplify right side
   102,380.16x = 8,061,293,352.50
5. Step 5: Solve for x
   x = 8,061,293,352.50/102,380.16
6. Step 6: Final answer
   x = 78,738.82