Finding the Fourth Proportional to 23,760.72, 32,791.68 and 13,690.08

Step by Step Solution

1. Step 1: Write the proportion equation
   23,760.72 : 32,791.68 = 13,690.08 : x
2. Step 2: Convert to fraction form
   23,760.72/32,791.68 = 13,690.08/x
3. Step 3: Cross multiply
   23,760.72x = 32,791.68 × 13,690.08
4. Step 4: Simplify right side
   23,760.72x = 448,920,722.53
5. Step 5: Solve for x
   x = 448,920,722.53/23,760.72
6. Step 6: Final answer
   x = 18,893.40