Finding the Fourth Proportional to 11,105.02, 16,662.21 and 5,909.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,105.02 : 16,662.21 = 5,909.50 : x
2. Step 2: Convert to fraction form
   11,105.02/16,662.21 = 5,909.50/x
3. Step 3: Cross multiply
   11,105.02x = 16,662.21 × 5,909.50
4. Step 4: Simplify right side
   11,105.02x = 98,465,330.00
5. Step 5: Solve for x
   x = 98,465,330.00/11,105.02
6. Step 6: Final answer
   x = 8,866.74