Finding the Fourth Proportional to 9,399.88, 14,104.86 and 7,212.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,399.88 : 14,104.86 = 7,212.52 : x
2. Step 2: Convert to fraction form
   9,399.88/14,104.86 = 7,212.52/x
3. Step 3: Cross multiply
   9,399.88x = 14,104.86 × 7,212.52
4. Step 4: Simplify right side
   9,399.88x = 101,731,584.85
5. Step 5: Solve for x
   x = 101,731,584.85/9,399.88
6. Step 6: Final answer
   x = 10,822.65