Finding the Fourth Proportional to 22,514.72, 31,074.17 and 13,088.75

Step by Step Solution

1. Step 1: Write the proportion equation
   22,514.72 : 31,074.17 = 13,088.75 : x
2. Step 2: Convert to fraction form
   22,514.72/31,074.17 = 13,088.75/x
3. Step 3: Cross multiply
   22,514.72x = 31,074.17 × 13,088.75
4. Step 4: Simplify right side
   22,514.72x = 406,721,821.77
5. Step 5: Solve for x
   x = 406,721,821.77/22,514.72
6. Step 6: Final answer
   x = 18,064.71