Finding the Fourth Proportional to 23,728.80, 32,742.84 and 13,116.96

Step by Step Solution

1. Step 1: Write the proportion equation
   23,728.80 : 32,742.84 = 13,116.96 : x
2. Step 2: Convert to fraction form
   23,728.80/32,742.84 = 13,116.96/x
3. Step 3: Cross multiply
   23,728.80x = 32,742.84 × 13,116.96
4. Step 4: Simplify right side
   23,728.80x = 429,486,522.57
5. Step 5: Solve for x
   x = 429,486,522.57/23,728.80
6. Step 6: Final answer
   x = 18,099.80