Finding the Fourth Proportional to 10,755.81, 14,802.57 and 9,099

Step by Step Solution

1. Step 1: Write the proportion equation
   10,755.81 : 14,802.57 = 9,099 : x
2. Step 2: Convert to fraction form
   10,755.81/14,802.57 = 9,099/x
3. Step 3: Cross multiply
   10,755.81x = 14,802.57 × 9,099
4. Step 4: Simplify right side
   10,755.81x = 134,688,584.43
5. Step 5: Solve for x
   x = 134,688,584.43/10,755.81
6. Step 6: Final answer
   x = 12,522.40