Finding the Fourth Proportional to 23,531.51, 32,473.31 and 12,921.12

Step by Step Solution

1. Step 1: Write the proportion equation
   23,531.51 : 32,473.31 = 12,921.12 : x
2. Step 2: Convert to fraction form
   23,531.51/32,473.31 = 12,921.12/x
3. Step 3: Cross multiply
   23,531.51x = 32,473.31 × 12,921.12
4. Step 4: Simplify right side
   23,531.51x = 419,591,470.70
5. Step 5: Solve for x
   x = 419,591,470.70/23,531.51
6. Step 6: Final answer
   x = 17,831.05