Finding the Fourth Proportional to 23,116.87, 31,901.10 and 12,506.47

Step by Step Solution

1. Step 1: Write the proportion equation
   23,116.87 : 31,901.10 = 12,506.47 : x
2. Step 2: Convert to fraction form
   23,116.87/31,901.10 = 12,506.47/x
3. Step 3: Cross multiply
   23,116.87x = 31,901.10 × 12,506.47
4. Step 4: Simplify right side
   23,116.87x = 398,970,150.12
5. Step 5: Solve for x
   x = 398,970,150.12/23,116.87
6. Step 6: Final answer
   x = 17,258.83