Finding the Fourth Proportional to 22,792.28, 31,449.33 and 12,719.93

Step by Step Solution

1. Step 1: Write the proportion equation
   22,792.28 : 31,449.33 = 12,719.93 : x
2. Step 2: Convert to fraction form
   22,792.28/31,449.33 = 12,719.93/x
3. Step 3: Cross multiply
   22,792.28x = 31,449.33 × 12,719.93
4. Step 4: Simplify right side
   22,792.28x = 400,033,118.90
5. Step 5: Solve for x
   x = 400,033,118.90/22,792.28
6. Step 6: Final answer
   x = 17,551.26