Finding the Fourth Proportional to 9,939.68, 13,716.72 and 5,463.71

Step by Step Solution

1. Step 1: Write the proportion equation
   9,939.68 : 13,716.72 = 5,463.71 : x
2. Step 2: Convert to fraction form
   9,939.68/13,716.72 = 5,463.71/x
3. Step 3: Cross multiply
   9,939.68x = 13,716.72 × 5,463.71
4. Step 4: Simplify right side
   9,939.68x = 74,944,111.65
5. Step 5: Solve for x
   x = 74,944,111.65/9,939.68
6. Step 6: Final answer
   x = 7,539.90