Finding the Fourth Proportional to 9,156.48, 12,632.85 and 5,572.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,156.48 : 12,632.85 = 5,572.68 : x
2. Step 2: Convert to fraction form
   9,156.48/12,632.85 = 5,572.68/x
3. Step 3: Cross multiply
   9,156.48x = 12,632.85 × 5,572.68
4. Step 4: Simplify right side
   9,156.48x = 70,398,830.54
5. Step 5: Solve for x
   x = 70,398,830.54/9,156.48
6. Step 6: Final answer
   x = 7,688.42