Finding the Fourth Proportional to 7,114.17, 10,675.86 and 3,218.61

Step by Step Solution

1. Step 1: Write the proportion equation
   7,114.17 : 10,675.86 = 3,218.61 : x
2. Step 2: Convert to fraction form
   7,114.17/10,675.86 = 3,218.61/x
3. Step 3: Cross multiply
   7,114.17x = 10,675.86 × 3,218.61
4. Step 4: Simplify right side
   7,114.17x = 34,361,429.75
5. Step 5: Solve for x
   x = 34,361,429.75/7,114.17
6. Step 6: Final answer
   x = 4,830.00