Finding the Fourth Proportional to 14,057.12, 19,399.24 and 7,684.07

Step by Step Solution

1. Step 1: Write the proportion equation
   14,057.12 : 19,399.24 = 7,684.07 : x
2. Step 2: Convert to fraction form
   14,057.12/19,399.24 = 7,684.07/x
3. Step 3: Cross multiply
   14,057.12x = 19,399.24 × 7,684.07
4. Step 4: Simplify right side
   14,057.12x = 149,065,030.72
5. Step 5: Solve for x
   x = 149,065,030.72/14,057.12
6. Step 6: Final answer
   x = 10,604.24