Finding the Fourth Proportional to 8,539.83, 12,802.91 and 5,731.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,539.83 : 12,802.91 = 5,731.61 : x
2. Step 2: Convert to fraction form
   8,539.83/12,802.91 = 5,731.61/x
3. Step 3: Cross multiply
   8,539.83x = 12,802.91 × 5,731.61
4. Step 4: Simplify right side
   8,539.83x = 73,381,194.31
5. Step 5: Solve for x
   x = 73,381,194.31/8,539.83
6. Step 6: Final answer
   x = 8,592.82