Finding the Fourth Proportional to 31,097.54, 42,939.92 and 25,355.94

Step by Step Solution

1. Step 1: Write the proportion equation
   31,097.54 : 42,939.92 = 25,355.94 : x
2. Step 2: Convert to fraction form
   31,097.54/42,939.92 = 25,355.94/x
3. Step 3: Cross multiply
   31,097.54x = 42,939.92 × 25,355.94
4. Step 4: Simplify right side
   31,097.54x = 1,088,782,035.12
5. Step 5: Solve for x
   x = 1,088,782,035.12/31,097.54
6. Step 6: Final answer
   x = 35,011.84