Finding the Fourth Proportional to 23,760.78, 32,789.77 and 13,691.01

Step by Step Solution

1. Step 1: Write the proportion equation
   23,760.78 : 32,789.77 = 13,691.01 : x
2. Step 2: Convert to fraction form
   23,760.78/32,789.77 = 13,691.01/x
3. Step 3: Cross multiply
   23,760.78x = 32,789.77 × 13,691.01
4. Step 4: Simplify right side
   23,760.78x = 448,925,209.04
5. Step 5: Solve for x
   x = 448,925,209.04/23,760.78
6. Step 6: Final answer
   x = 18,893.54