Finding the Fourth Proportional to 12,330.37, 17,019.12 and 7,611.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,330.37 : 17,019.12 = 7,611.92 : x
2. Step 2: Convert to fraction form
   12,330.37/17,019.12 = 7,611.92/x
3. Step 3: Cross multiply
   12,330.37x = 17,019.12 × 7,611.92
4. Step 4: Simplify right side
   12,330.37x = 129,548,179.91
5. Step 5: Solve for x
   x = 129,548,179.91/12,330.37
6. Step 6: Final answer
   x = 10,506.43