Finding the Fourth Proportional to 102,524.30, 141,494.47 and 57,218.03

Step by Step Solution

1. Step 1: Write the proportion equation
   102,524.30 : 141,494.47 = 57,218.03 : x
2. Step 2: Convert to fraction form
   102,524.30/141,494.47 = 57,218.03/x
3. Step 3: Cross multiply
   102,524.30x = 141,494.47 × 57,218.03
4. Step 4: Simplify right side
   102,524.30x = 8,096,033,978.78
5. Step 5: Solve for x
   x = 8,096,033,978.78/102,524.30
6. Step 6: Final answer
   x = 78,966.98