Finding the Fourth Proportional to 102,524.42, 141,494.64 and 57,218.15

Step by Step Solution

1. Step 1: Write the proportion equation
   102,524.42 : 141,494.64 = 57,218.15 : x
2. Step 2: Convert to fraction form
   102,524.42/141,494.64 = 57,218.15/x
3. Step 3: Cross multiply
   102,524.42x = 141,494.64 × 57,218.15
4. Step 4: Simplify right side
   102,524.42x = 8,096,061,535.72
5. Step 5: Solve for x
   x = 8,096,061,535.72/102,524.42
6. Step 6: Final answer
   x = 78,967.15