Finding the Fourth Proportional to 57,061.97, 78,738.57 and 31,564.92

Step by Step Solution

1. Step 1: Write the proportion equation
   57,061.97 : 78,738.57 = 31,564.92 : x
2. Step 2: Convert to fraction form
   57,061.97/78,738.57 = 31,564.92/x
3. Step 3: Cross multiply
   57,061.97x = 78,738.57 × 31,564.92
4. Step 4: Simplify right side
   57,061.97x = 2,485,376,662.96
5. Step 5: Solve for x
   x = 2,485,376,662.96/57,061.97
6. Step 6: Final answer
   x = 43,555.75