Finding the Fourth Proportional to 8,829.89, 12,180.15 and 5,291.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,829.89 : 12,180.15 = 5,291.04 : x
2. Step 2: Convert to fraction form
   8,829.89/12,180.15 = 5,291.04/x
3. Step 3: Cross multiply
   8,829.89x = 12,180.15 × 5,291.04
4. Step 4: Simplify right side
   8,829.89x = 64,445,660.86
5. Step 5: Solve for x
   x = 64,445,660.86/8,829.89
6. Step 6: Final answer
   x = 7,298.58