Finding the Fourth Proportional to 14,144.61, 19,519.61 and 7,771.71

Step by Step Solution

1. Step 1: Write the proportion equation
   14,144.61 : 19,519.61 = 7,771.71 : x
2. Step 2: Convert to fraction form
   14,144.61/19,519.61 = 7,771.71/x
3. Step 3: Cross multiply
   14,144.61x = 19,519.61 × 7,771.71
4. Step 4: Simplify right side
   14,144.61x = 151,700,767.66
5. Step 5: Solve for x
   x = 151,700,767.66/14,144.61
6. Step 6: Final answer
   x = 10,724.99