Finding the Fourth Proportional to 24,870.71, 34,321.56 and 13,692.71

Step by Step Solution

1. Step 1: Write the proportion equation
   24,870.71 : 34,321.56 = 13,692.71 : x
2. Step 2: Convert to fraction form
   24,870.71/34,321.56 = 13,692.71/x
3. Step 3: Cross multiply
   24,870.71x = 34,321.56 × 13,692.71
4. Step 4: Simplify right side
   24,870.71x = 469,955,167.83
5. Step 5: Solve for x
   x = 469,955,167.83/24,870.71
6. Step 6: Final answer
   x = 18,895.93