Finding the Fourth Proportional to 22,492.86, 31,034.55 and 13,538.46

Step by Step Solution

1. Step 1: Write the proportion equation
   22,492.86 : 31,034.55 = 13,538.46 : x
2. Step 2: Convert to fraction form
   22,492.86/31,034.55 = 13,538.46/x
3. Step 3: Cross multiply
   22,492.86x = 31,034.55 × 13,538.46
4. Step 4: Simplify right side
   22,492.86x = 420,160,013.79
5. Step 5: Solve for x
   x = 420,160,013.79/22,492.86
6. Step 6: Final answer
   x = 18,679.71