Finding the Fourth Proportional to 8,718.10, 12,030.06 and 5,180.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,718.10 : 12,030.06 = 5,180.83 : x
2. Step 2: Convert to fraction form
   8,718.10/12,030.06 = 5,180.83/x
3. Step 3: Cross multiply
   8,718.10x = 12,030.06 × 5,180.83
4. Step 4: Simplify right side
   8,718.10x = 62,325,695.75
5. Step 5: Solve for x
   x = 62,325,695.75/8,718.10
6. Step 6: Final answer
   x = 7,149.00