Finding the Fourth Proportional to 23,310.42, 32,168.28 and 13,238.40

Step by Step Solution

1. Step 1: Write the proportion equation
   23,310.42 : 32,168.28 = 13,238.40 : x
2. Step 2: Convert to fraction form
   23,310.42/32,168.28 = 13,238.40/x
3. Step 3: Cross multiply
   23,310.42x = 32,168.28 × 13,238.40
4. Step 4: Simplify right side
   23,310.42x = 425,856,557.95
5. Step 5: Solve for x
   x = 425,856,557.95/23,310.42
6. Step 6: Final answer
   x = 18,268.94