Finding the Fourth Proportional to 11,079.15, 16,606.86 and 5,521.53

Step by Step Solution

1. Step 1: Write the proportion equation
   11,079.15 : 16,606.86 = 5,521.53 : x
2. Step 2: Convert to fraction form
   11,079.15/16,606.86 = 5,521.53/x
3. Step 3: Cross multiply
   11,079.15x = 16,606.86 × 5,521.53
4. Step 4: Simplify right side
   11,079.15x = 91,695,275.70
5. Step 5: Solve for x
   x = 91,695,275.70/11,079.15
6. Step 6: Final answer
   x = 8,276.38