Finding the Fourth Proportional to 23,085.86, 31,837.37 and 15,132.47

Step by Step Solution

1. Step 1: Write the proportion equation
   23,085.86 : 31,837.37 = 15,132.47 : x
2. Step 2: Convert to fraction form
   23,085.86/31,837.37 = 15,132.47/x
3. Step 3: Cross multiply
   23,085.86x = 31,837.37 × 15,132.47
4. Step 4: Simplify right side
   23,085.86x = 481,777,811.55
5. Step 5: Solve for x
   x = 481,777,811.55/23,085.86
6. Step 6: Final answer
   x = 20,868.96