Finding the Fourth Proportional to 23,147.60, 31,943.61 and 12,537.21

Step by Step Solution

1. Step 1: Write the proportion equation
   23,147.60 : 31,943.61 = 12,537.21 : x
2. Step 2: Convert to fraction form
   23,147.60/31,943.61 = 12,537.21/x
3. Step 3: Cross multiply
   23,147.60x = 31,943.61 × 12,537.21
4. Step 4: Simplify right side
   23,147.60x = 400,483,746.73
5. Step 5: Solve for x
   x = 400,483,746.73/23,147.60
6. Step 6: Final answer
   x = 17,301.31