Finding the Fourth Proportional to 22,609.89, 31,194.18 and 13,653.99

Step by Step Solution

1. Step 1: Write the proportion equation
   22,609.89 : 31,194.18 = 13,653.99 : x
2. Step 2: Convert to fraction form
   22,609.89/31,194.18 = 13,653.99/x
3. Step 3: Cross multiply
   22,609.89x = 31,194.18 × 13,653.99
4. Step 4: Simplify right side
   22,609.89x = 425,925,021.78
5. Step 5: Solve for x
   x = 425,925,021.78/22,609.89
6. Step 6: Final answer
   x = 18,838.00