Finding the Fourth Proportional to 22,569.93, 31,144.33 and 13,493.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,569.93 : 31,144.33 = 13,493.50 : x
2. Step 2: Convert to fraction form
   22,569.93/31,144.33 = 13,493.50/x
3. Step 3: Cross multiply
   22,569.93x = 31,144.33 × 13,493.50
4. Step 4: Simplify right side
   22,569.93x = 420,246,016.86
5. Step 5: Solve for x
   x = 420,246,016.86/22,569.93
6. Step 6: Final answer
   x = 18,619.73