Finding the Fourth Proportional to 10,700.76, 14,766.66 and 7,561.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,700.76 : 14,766.66 = 7,561.20 : x
2. Step 2: Convert to fraction form
   10,700.76/14,766.66 = 7,561.20/x
3. Step 3: Cross multiply
   10,700.76x = 14,766.66 × 7,561.20
4. Step 4: Simplify right side
   10,700.76x = 111,653,669.59
5. Step 5: Solve for x
   x = 111,653,669.59/10,700.76
6. Step 6: Final answer
   x = 10,434.18