Finding the Fourth Proportional to 22,622.06, 31,212.15 and 13,543.67

Step by Step Solution

1. Step 1: Write the proportion equation
   22,622.06 : 31,212.15 = 13,543.67 : x
2. Step 2: Convert to fraction form
   22,622.06/31,212.15 = 13,543.67/x
3. Step 3: Cross multiply
   22,622.06x = 31,212.15 × 13,543.67
4. Step 4: Simplify right side
   22,622.06x = 422,727,059.59
5. Step 5: Solve for x
   x = 422,727,059.59/22,622.06
6. Step 6: Final answer
   x = 18,686.50