Finding the Fourth Proportional to 22,667.56, 31,160.25 and 20,252.20

Step by Step Solution

1. Step 1: Write the proportion equation
   22,667.56 : 31,160.25 = 20,252.20 : x
2. Step 2: Convert to fraction form
   22,667.56/31,160.25 = 20,252.20/x
3. Step 3: Cross multiply
   22,667.56x = 31,160.25 × 20,252.20
4. Step 4: Simplify right side
   22,667.56x = 631,063,615.05
5. Step 5: Solve for x
   x = 631,063,615.05/22,667.56
6. Step 6: Final answer
   x = 27,839.94