Finding the Fourth Proportional to 57,111.84, 78,816.92 and 31,961.34

Step by Step Solution

1. Step 1: Write the proportion equation
   57,111.84 : 78,816.92 = 31,961.34 : x
2. Step 2: Convert to fraction form
   57,111.84/78,816.92 = 31,961.34/x
3. Step 3: Cross multiply
   57,111.84x = 78,816.92 × 31,961.34
4. Step 4: Simplify right side
   57,111.84x = 2,519,094,218.07
5. Step 5: Solve for x
   x = 2,519,094,218.07/57,111.84
6. Step 6: Final answer
   x = 44,108.09