Finding the Fourth Proportional to 12,433.50, 17,158.23 and 7,130.07

Step by Step Solution

1. Step 1: Write the proportion equation
   12,433.50 : 17,158.23 = 7,130.07 : x
2. Step 2: Convert to fraction form
   12,433.50/17,158.23 = 7,130.07/x
3. Step 3: Cross multiply
   12,433.50x = 17,158.23 × 7,130.07
4. Step 4: Simplify right side
   12,433.50x = 122,339,380.98
5. Step 5: Solve for x
   x = 122,339,380.98/12,433.50
6. Step 6: Final answer
   x = 9,839.50