Finding the Fourth Proportional to 10,516.50, 14,503.62 and 9,099.73

Step by Step Solution

1. Step 1: Write the proportion equation
   10,516.50 : 14,503.62 = 9,099.73 : x
2. Step 2: Convert to fraction form
   10,516.50/14,503.62 = 9,099.73/x
3. Step 3: Cross multiply
   10,516.50x = 14,503.62 × 9,099.73
4. Step 4: Simplify right side
   10,516.50x = 131,979,026.02
5. Step 5: Solve for x
   x = 131,979,026.02/10,516.50
6. Step 6: Final answer
   x = 12,549.71