Finding the Fourth Proportional to 16,381.98, 24,535.98 and 13,429.53

Step by Step Solution

1. Step 1: Write the proportion equation
   16,381.98 : 24,535.98 = 13,429.53 : x
2. Step 2: Convert to fraction form
   16,381.98/24,535.98 = 13,429.53/x
3. Step 3: Cross multiply
   16,381.98x = 24,535.98 × 13,429.53
4. Step 4: Simplify right side
   16,381.98x = 329,506,679.49
5. Step 5: Solve for x
   x = 329,506,679.49/16,381.98
6. Step 6: Final answer
   x = 20,113.97