Finding the Fourth Proportional to 12,223.62, 18,329.13 and 5,980.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,223.62 : 18,329.13 = 5,980.86 : x
2. Step 2: Convert to fraction form
   12,223.62/18,329.13 = 5,980.86/x
3. Step 3: Cross multiply
   12,223.62x = 18,329.13 × 5,980.86
4. Step 4: Simplify right side
   12,223.62x = 109,623,960.45
5. Step 5: Solve for x
   x = 109,623,960.45/12,223.62
6. Step 6: Final answer
   x = 8,968.21