Finding the Fourth Proportional to 23,728.56, 32,744.12 and 13,117.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,728.56 : 32,744.12 = 13,117.50 : x
2. Step 2: Convert to fraction form
   23,728.56/32,744.12 = 13,117.50/x
3. Step 3: Cross multiply
   23,728.56x = 32,744.12 × 13,117.50
4. Step 4: Simplify right side
   23,728.56x = 429,520,928.51
5. Step 5: Solve for x
   x = 429,520,928.51/23,728.56
6. Step 6: Final answer
   x = 18,101.44