Finding the Fourth Proportional to 7,116.88, 9,816.72 and 4,726.80

Step by Step Solution

1. Step 1: Write the proportion equation
   7,116.88 : 9,816.72 = 4,726.80 : x
2. Step 2: Convert to fraction form
   7,116.88/9,816.72 = 4,726.80/x
3. Step 3: Cross multiply
   7,116.88x = 9,816.72 × 4,726.80
4. Step 4: Simplify right side
   7,116.88x = 46,401,672.10
5. Step 5: Solve for x
   x = 46,401,672.10/7,116.88
6. Step 6: Final answer
   x = 6,519.95