Finding the Fourth Proportional to 10,449.91, 14,439.56 and 7,771.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,449.91 : 14,439.56 = 7,771.94 : x
2. Step 2: Convert to fraction form
   10,449.91/14,439.56 = 7,771.94/x
3. Step 3: Cross multiply
   10,449.91x = 14,439.56 × 7,771.94
4. Step 4: Simplify right side
   10,449.91x = 112,223,355.09
5. Step 5: Solve for x
   x = 112,223,355.09/10,449.91
6. Step 6: Final answer
   x = 10,739.17