Finding the Fourth Proportional to 8,737.01, 13,042.18 and 8,086.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,737.01 : 13,042.18 = 8,086.61 : x
2. Step 2: Convert to fraction form
   8,737.01/13,042.18 = 8,086.61/x
3. Step 3: Cross multiply
   8,737.01x = 13,042.18 × 8,086.61
4. Step 4: Simplify right side
   8,737.01x = 105,467,002.99
5. Step 5: Solve for x
   x = 105,467,002.99/8,737.01
6. Step 6: Final answer
   x = 12,071.29