Finding the Fourth Proportional to 23,385.78, 32,271.87 and 12,775.47

Step by Step Solution

1. Step 1: Write the proportion equation
   23,385.78 : 32,271.87 = 12,775.47 : x
2. Step 2: Convert to fraction form
   23,385.78/32,271.87 = 12,775.47/x
3. Step 3: Cross multiply
   23,385.78x = 32,271.87 × 12,775.47
4. Step 4: Simplify right side
   23,385.78x = 412,288,307.03
5. Step 5: Solve for x
   x = 412,288,307.03/23,385.78
6. Step 6: Final answer
   x = 17,629.87