Finding the Fourth Proportional to 22,589.71, 31,173.32 and 12,518.07

Step by Step Solution

1. Step 1: Write the proportion equation
   22,589.71 : 31,173.32 = 12,518.07 : x
2. Step 2: Convert to fraction form
   22,589.71/31,173.32 = 12,518.07/x
3. Step 3: Cross multiply
   22,589.71x = 31,173.32 × 12,518.07
4. Step 4: Simplify right side
   22,589.71x = 390,229,801.89
5. Step 5: Solve for x
   x = 390,229,801.89/22,589.71
6. Step 6: Final answer
   x = 17,274.67