Finding the Fourth Proportional to 17,132.68, 23,656.50 and 13,147.48

Step by Step Solution

1. Step 1: Write the proportion equation
   17,132.68 : 23,656.50 = 13,147.48 : x
2. Step 2: Convert to fraction form
   17,132.68/23,656.50 = 13,147.48/x
3. Step 3: Cross multiply
   17,132.68x = 23,656.50 × 13,147.48
4. Step 4: Simplify right side
   17,132.68x = 311,023,360.62
5. Step 5: Solve for x
   x = 311,023,360.62/17,132.68
6. Step 6: Final answer
   x = 18,153.81