Finding the Fourth Proportional to 11,109.55, 16,658.02 and 4,528.03

Step by Step Solution

1. Step 1: Write the proportion equation
   11,109.55 : 16,658.02 = 4,528.03 : x
2. Step 2: Convert to fraction form
   11,109.55/16,658.02 = 4,528.03/x
3. Step 3: Cross multiply
   11,109.55x = 16,658.02 × 4,528.03
4. Step 4: Simplify right side
   11,109.55x = 75,428,014.30
5. Step 5: Solve for x
   x = 75,428,014.30/11,109.55
6. Step 6: Final answer
   x = 6,789.48