Finding the Fourth Proportional to 10,685.85, 14,736.89 and 8,899.23

Step by Step Solution

1. Step 1: Write the proportion equation
   10,685.85 : 14,736.89 = 8,899.23 : x
2. Step 2: Convert to fraction form
   10,685.85/14,736.89 = 8,899.23/x
3. Step 3: Cross multiply
   10,685.85x = 14,736.89 × 8,899.23
4. Step 4: Simplify right side
   10,685.85x = 131,146,929.10
5. Step 5: Solve for x
   x = 131,146,929.10/10,685.85
6. Step 6: Final answer
   x = 12,272.95