Finding the Fourth Proportional to 57,198.15, 78,906.15 and 38,086.74

Step by Step Solution

1. Step 1: Write the proportion equation
   57,198.15 : 78,906.15 = 38,086.74 : x
2. Step 2: Convert to fraction form
   57,198.15/78,906.15 = 38,086.74/x
3. Step 3: Cross multiply
   57,198.15x = 78,906.15 × 38,086.74
4. Step 4: Simplify right side
   57,198.15x = 3,005,278,019.45
5. Step 5: Solve for x
   x = 3,005,278,019.45/57,198.15
6. Step 6: Final answer
   x = 52,541.52