Finding the Fourth Proportional to 9,108.54, 12,570.30 and 5,572.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,108.54 : 12,570.30 = 5,572.53 : x
2. Step 2: Convert to fraction form
   9,108.54/12,570.30 = 5,572.53/x
3. Step 3: Cross multiply
   9,108.54x = 12,570.30 × 5,572.53
4. Step 4: Simplify right side
   9,108.54x = 70,048,373.86
5. Step 5: Solve for x
   x = 70,048,373.86/9,108.54
6. Step 6: Final answer
   x = 7,690.41