Finding the Fourth Proportional to 52,155.09, 78,243.57 and 25,856.42

Step by Step Solution

1. Step 1: Write the proportion equation
   52,155.09 : 78,243.57 = 25,856.42 : x
2. Step 2: Convert to fraction form
   52,155.09/78,243.57 = 25,856.42/x
3. Step 3: Cross multiply
   52,155.09x = 78,243.57 × 25,856.42
4. Step 4: Simplify right side
   52,155.09x = 2,023,098,217.00
5. Step 5: Solve for x
   x = 2,023,098,217.00/52,155.09
6. Step 6: Final answer
   x = 38,790.04