Finding the Fourth Proportional to 9,168.83, 12,655.74 and 5,392.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,168.83 : 12,655.74 = 5,392.20 : x
2. Step 2: Convert to fraction form
   9,168.83/12,655.74 = 5,392.20/x
3. Step 3: Cross multiply
   9,168.83x = 12,655.74 × 5,392.20
4. Step 4: Simplify right side
   9,168.83x = 68,242,348.91
5. Step 5: Solve for x
   x = 68,242,348.91/9,168.83
6. Step 6: Final answer
   x = 7,442.86