Finding the Fourth Proportional to 23,757, 32,785.20 and 15,388.08

Step by Step Solution

1. Step 1: Write the proportion equation
   23,757 : 32,785.20 = 15,388.08 : x
2. Step 2: Convert to fraction form
   23,757/32,785.20 = 15,388.08/x
3. Step 3: Cross multiply
   23,757x = 32,785.20 × 15,388.08
4. Step 4: Simplify right side
   23,757x = 504,501,280.42
5. Step 5: Solve for x
   x = 504,501,280.42/23,757
6. Step 6: Final answer
   x = 21,235.90