Finding the Fourth Proportional to 12,321.12, 17,002.96 and 7,352.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,321.12 : 17,002.96 = 7,352.16 : x
2. Step 2: Convert to fraction form
   12,321.12/17,002.96 = 7,352.16/x
3. Step 3: Cross multiply
   12,321.12x = 17,002.96 × 7,352.16
4. Step 4: Simplify right side
   12,321.12x = 125,008,482.39
5. Step 5: Solve for x
   x = 125,008,482.39/12,321.12
6. Step 6: Final answer
   x = 10,145.87