Finding the Fourth Proportional to 72,614.43, 108,968.45 and 31,061.79

Step by Step Solution

1. Step 1: Write the proportion equation
   72,614.43 : 108,968.45 = 31,061.79 : x
2. Step 2: Convert to fraction form
   72,614.43/108,968.45 = 31,061.79/x
3. Step 3: Cross multiply
   72,614.43x = 108,968.45 × 31,061.79
4. Step 4: Simplify right side
   72,614.43x = 3,384,754,955.22
5. Step 5: Solve for x
   x = 3,384,754,955.22/72,614.43
6. Step 6: Final answer
   x = 46,612.70