Finding the Fourth Proportional to 71,544.06, 98,730.72 and 39,712.89

Step by Step Solution

1. Step 1: Write the proportion equation
   71,544.06 : 98,730.72 = 39,712.89 : x
2. Step 2: Convert to fraction form
   71,544.06/98,730.72 = 39,712.89/x
3. Step 3: Cross multiply
   71,544.06x = 98,730.72 × 39,712.89
4. Step 4: Simplify right side
   71,544.06x = 3,920,882,222.98
5. Step 5: Solve for x
   x = 3,920,882,222.98/71,544.06
6. Step 6: Final answer
   x = 54,803.74