Finding the Fourth Proportional to 12,066.50, 16,651.75 and 7,350.78

Step by Step Solution

1. Step 1: Write the proportion equation
   12,066.50 : 16,651.75 = 7,350.78 : x
2. Step 2: Convert to fraction form
   12,066.50/16,651.75 = 7,350.78/x
3. Step 3: Cross multiply
   12,066.50x = 16,651.75 × 7,350.78
4. Step 4: Simplify right side
   12,066.50x = 122,403,422.50
5. Step 5: Solve for x
   x = 122,403,422.50/12,066.50
6. Step 6: Final answer
   x = 10,144.07