Finding the Fourth Proportional to 22,692.42, 31,302.76 and 13,615.43

Step by Step Solution

1. Step 1: Write the proportion equation
   22,692.42 : 31,302.76 = 13,615.43 : x
2. Step 2: Convert to fraction form
   22,692.42/31,302.76 = 13,615.43/x
3. Step 3: Cross multiply
   22,692.42x = 31,302.76 × 13,615.43
4. Step 4: Simplify right side
   22,692.42x = 426,200,581.81
5. Step 5: Solve for x
   x = 426,200,581.81/22,692.42
6. Step 6: Final answer
   x = 18,781.63