Finding the Fourth Proportional to 9,065.52, 12,508.20 and 5,528.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,065.52 : 12,508.20 = 5,528.52 : x
2. Step 2: Convert to fraction form
   9,065.52/12,508.20 = 5,528.52/x
3. Step 3: Cross multiply
   9,065.52x = 12,508.20 × 5,528.52
4. Step 4: Simplify right side
   9,065.52x = 69,151,833.86
5. Step 5: Solve for x
   x = 69,151,833.86/9,065.52
6. Step 6: Final answer
   x = 7,628.01