Finding the Fourth Proportional to 72,851.65, 109,292.25 and 30,731.87

Step by Step Solution

1. Step 1: Write the proportion equation
   72,851.65 : 109,292.25 = 30,731.87 : x
2. Step 2: Convert to fraction form
   72,851.65/109,292.25 = 30,731.87/x
3. Step 3: Cross multiply
   72,851.65x = 109,292.25 × 30,731.87
4. Step 4: Simplify right side
   72,851.65x = 3,358,755,016.76
5. Step 5: Solve for x
   x = 3,358,755,016.76/72,851.65
6. Step 6: Final answer
   x = 46,104.04