Finding the Fourth Proportional to 23,538.91, 32,483.91 and 12,928.78

Step by Step Solution

1. Step 1: Write the proportion equation
   23,538.91 : 32,483.91 = 12,928.78 : x
2. Step 2: Convert to fraction form
   23,538.91/32,483.91 = 12,928.78/x
3. Step 3: Cross multiply
   23,538.91x = 32,483.91 × 12,928.78
4. Step 4: Simplify right side
   23,538.91x = 419,977,325.93
5. Step 5: Solve for x
   x = 419,977,325.93/23,538.91
6. Step 6: Final answer
   x = 17,841.83