Finding the Fourth Proportional to 23,085.62, 31,845.67 and 15,442.10

Step by Step Solution

1. Step 1: Write the proportion equation
   23,085.62 : 31,845.67 = 15,442.10 : x
2. Step 2: Convert to fraction form
   23,085.62/31,845.67 = 15,442.10/x
3. Step 3: Cross multiply
   23,085.62x = 31,845.67 × 15,442.10
4. Step 4: Simplify right side
   23,085.62x = 491,763,822.87
5. Step 5: Solve for x
   x = 491,763,822.87/23,085.62
6. Step 6: Final answer
   x = 21,301.74