Finding the Fourth Proportional to 22,692.96, 31,319.52 and 13,618.71

Step by Step Solution

1. Step 1: Write the proportion equation
   22,692.96 : 31,319.52 = 13,618.71 : x
2. Step 2: Convert to fraction form
   22,692.96/31,319.52 = 13,618.71/x
3. Step 3: Cross multiply
   22,692.96x = 31,319.52 × 13,618.71
4. Step 4: Simplify right side
   22,692.96x = 426,531,460.22
5. Step 5: Solve for x
   x = 426,531,460.22/22,692.96
6. Step 6: Final answer
   x = 18,795.76