Finding the Fourth Proportional to 11,172.03, 16,752.31 and 5,909.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,172.03 : 16,752.31 = 5,909.88 : x
2. Step 2: Convert to fraction form
   11,172.03/16,752.31 = 5,909.88/x
3. Step 3: Cross multiply
   11,172.03x = 16,752.31 × 5,909.88
4. Step 4: Simplify right side
   11,172.03x = 99,004,141.82
5. Step 5: Solve for x
   x = 99,004,141.82/11,172.03
6. Step 6: Final answer
   x = 8,861.79