Finding the Fourth Proportional to 23,107.69, 31,888.61 and 12,497.32

Step by Step Solution

1. Step 1: Write the proportion equation
   23,107.69 : 31,888.61 = 12,497.32 : x
2. Step 2: Convert to fraction form
   23,107.69/31,888.61 = 12,497.32/x
3. Step 3: Cross multiply
   23,107.69x = 31,888.61 × 12,497.32
4. Step 4: Simplify right side
   23,107.69x = 398,522,086.66
5. Step 5: Solve for x
   x = 398,522,086.66/23,107.69
6. Step 6: Final answer
   x = 17,246.30