Finding the Fourth Proportional to 23,132.72, 31,923.32 and 12,923.76

Step by Step Solution

1. Step 1: Write the proportion equation
   23,132.72 : 31,923.32 = 12,923.76 : x
2. Step 2: Convert to fraction form
   23,132.72/31,923.32 = 12,923.76/x
3. Step 3: Cross multiply
   23,132.72x = 31,923.32 × 12,923.76
4. Step 4: Simplify right side
   23,132.72x = 412,569,326.08
5. Step 5: Solve for x
   x = 412,569,326.08/23,132.72
6. Step 6: Final answer
   x = 17,834.88