Finding the Fourth Proportional to 10,548.40, 14,567.52 and 7,399.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,548.40 : 14,567.52 = 7,399.12 : x
2. Step 2: Convert to fraction form
   10,548.40/14,567.52 = 7,399.12/x
3. Step 3: Cross multiply
   10,548.40x = 14,567.52 × 7,399.12
4. Step 4: Simplify right side
   10,548.40x = 107,786,828.58
5. Step 5: Solve for x
   x = 107,786,828.58/10,548.40
6. Step 6: Final answer
   x = 10,218.31