Finding the Fourth Proportional to 57,229.68, 78,976.56 and 31,736.02

Step by Step Solution

1. Step 1: Write the proportion equation
   57,229.68 : 78,976.56 = 31,736.02 : x
2. Step 2: Convert to fraction form
   57,229.68/78,976.56 = 31,736.02/x
3. Step 3: Cross multiply
   57,229.68x = 78,976.56 × 31,736.02
4. Step 4: Simplify right side
   57,229.68x = 2,506,401,687.69
5. Step 5: Solve for x
   x = 2,506,401,687.69/57,229.68
6. Step 6: Final answer
   x = 43,795.49