Finding the Fourth Proportional to 9,036.48, 12,471.20 and 5,500.64

Step by Step Solution

1. Step 1: Write the proportion equation
   9,036.48 : 12,471.20 = 5,500.64 : x
2. Step 2: Convert to fraction form
   9,036.48/12,471.20 = 5,500.64/x
3. Step 3: Cross multiply
   9,036.48x = 12,471.20 × 5,500.64
4. Step 4: Simplify right side
   9,036.48x = 68,599,581.57
5. Step 5: Solve for x
   x = 68,599,581.57/9,036.48
6. Step 6: Final answer
   x = 7,591.41