Finding the Fourth Proportional to 8,402.88, 11,601.12 and 5,572.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,402.88 : 11,601.12 = 5,572.72 : x
2. Step 2: Convert to fraction form
   8,402.88/11,601.12 = 5,572.72/x
3. Step 3: Cross multiply
   8,402.88x = 11,601.12 × 5,572.72
4. Step 4: Simplify right side
   8,402.88x = 64,649,793.45
5. Step 5: Solve for x
   x = 64,649,793.45/8,402.88
6. Step 6: Final answer
   x = 7,693.77