Finding the Fourth Proportional to 22,514.90, 31,071.74 and 12,956.24

Step by Step Solution

1. Step 1: Write the proportion equation
   22,514.90 : 31,071.74 = 12,956.24 : x
2. Step 2: Convert to fraction form
   22,514.90/31,071.74 = 12,956.24/x
3. Step 3: Cross multiply
   22,514.90x = 31,071.74 × 12,956.24
4. Step 4: Simplify right side
   22,514.90x = 402,572,758.78
5. Step 5: Solve for x
   x = 402,572,758.78/22,514.90
6. Step 6: Final answer
   x = 17,880.29