Finding the Fourth Proportional to 22,726.34, 31,368.15 and 13,164.29

Step by Step Solution

1. Step 1: Write the proportion equation
   22,726.34 : 31,368.15 = 13,164.29 : x
2. Step 2: Convert to fraction form
   22,726.34/31,368.15 = 13,164.29/x
3. Step 3: Cross multiply
   22,726.34x = 31,368.15 × 13,164.29
4. Step 4: Simplify right side
   22,726.34x = 412,939,266.52
5. Step 5: Solve for x
   x = 412,939,266.52/22,726.34
6. Step 6: Final answer
   x = 18,170.08