Finding the Fourth Proportional to 7,079.50, 10,618.05 and 2,147.95

Step by Step Solution

1. Step 1: Write the proportion equation
   7,079.50 : 10,618.05 = 2,147.95 : x
2. Step 2: Convert to fraction form
   7,079.50/10,618.05 = 2,147.95/x
3. Step 3: Cross multiply
   7,079.50x = 10,618.05 × 2,147.95
4. Step 4: Simplify right side
   7,079.50x = 22,807,061.82
5. Step 5: Solve for x
   x = 22,807,061.82/7,079.50
6. Step 6: Final answer
   x = 3,221.56