Finding the Fourth Proportional to 23,550.45, 32,498.40 and 12,938.05

Step by Step Solution

1. Step 1: Write the proportion equation
   23,550.45 : 32,498.40 = 12,938.05 : x
2. Step 2: Convert to fraction form
   23,550.45/32,498.40 = 12,938.05/x
3. Step 3: Cross multiply
   23,550.45x = 32,498.40 × 12,938.05
4. Step 4: Simplify right side
   23,550.45x = 420,465,924.12
5. Step 5: Solve for x
   x = 420,465,924.12/23,550.45
6. Step 6: Final answer
   x = 17,853.84