Finding the Fourth Proportional to 57,146.07, 78,861.48 and 31,995.57

Step by Step Solution

1. Step 1: Write the proportion equation
   57,146.07 : 78,861.48 = 31,995.57 : x
2. Step 2: Convert to fraction form
   57,146.07/78,861.48 = 31,995.57/x
3. Step 3: Cross multiply
   57,146.07x = 78,861.48 × 31,995.57
4. Step 4: Simplify right side
   57,146.07x = 2,523,218,003.64
5. Step 5: Solve for x
   x = 2,523,218,003.64/57,146.07
6. Step 6: Final answer
   x = 44,153.83