Finding the Fourth Proportional to 22,656.71, 31,271.27 and 12,588.62

Step by Step Solution

1. Step 1: Write the proportion equation
   22,656.71 : 31,271.27 = 12,588.62 : x
2. Step 2: Convert to fraction form
   22,656.71/31,271.27 = 12,588.62/x
3. Step 3: Cross multiply
   22,656.71x = 31,271.27 × 12,588.62
4. Step 4: Simplify right side
   22,656.71x = 393,661,915.65
5. Step 5: Solve for x
   x = 393,661,915.65/22,656.71
6. Step 6: Final answer
   x = 17,375.07