Finding the Fourth Proportional to 23,182.18, 31,991.41 and 12,571.81

Step by Step Solution

1. Step 1: Write the proportion equation
   23,182.18 : 31,991.41 = 12,571.81 : x
2. Step 2: Convert to fraction form
   23,182.18/31,991.41 = 12,571.81/x
3. Step 3: Cross multiply
   23,182.18x = 31,991.41 × 12,571.81
4. Step 4: Simplify right side
   23,182.18x = 402,189,928.15
5. Step 5: Solve for x
   x = 402,189,928.15/23,182.18
6. Step 6: Final answer
   x = 17,349.10