Finding the Fourth Proportional to 22,623.15, 31,223.18 and 13,061.13

Step by Step Solution

1. Step 1: Write the proportion equation
   22,623.15 : 31,223.18 = 13,061.13 : x
2. Step 2: Convert to fraction form
   22,623.15/31,223.18 = 13,061.13/x
3. Step 3: Cross multiply
   22,623.15x = 31,223.18 × 13,061.13
4. Step 4: Simplify right side
   22,623.15x = 407,809,830.60
5. Step 5: Solve for x
   x = 407,809,830.60/22,623.15
6. Step 6: Final answer
   x = 18,026.22