Finding the Fourth Proportional to 10,773.50, 16,081.28 and 9,981.95

Step by Step Solution

1. Step 1: Write the proportion equation
   10,773.50 : 16,081.28 = 9,981.95 : x
2. Step 2: Convert to fraction form
   10,773.50/16,081.28 = 9,981.95/x
3. Step 3: Cross multiply
   10,773.50x = 16,081.28 × 9,981.95
4. Step 4: Simplify right side
   10,773.50x = 160,522,532.90
5. Step 5: Solve for x
   x = 160,522,532.90/10,773.50
6. Step 6: Final answer
   x = 14,899.76