Finding the Fourth Proportional to 9,112.83, 12,572.04 and 5,569.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,112.83 : 12,572.04 = 5,569.89 : x
2. Step 2: Convert to fraction form
   9,112.83/12,572.04 = 5,569.89/x
3. Step 3: Cross multiply
   9,112.83x = 12,572.04 × 5,569.89
4. Step 4: Simplify right side
   9,112.83x = 70,024,879.88
5. Step 5: Solve for x
   x = 70,024,879.88/9,112.83
6. Step 6: Final answer
   x = 7,684.21