Finding the Fourth Proportional to 23,905.39, 32,990.23 and 13,150.71

Step by Step Solution

1. Step 1: Write the proportion equation
   23,905.39 : 32,990.23 = 13,150.71 : x
2. Step 2: Convert to fraction form
   23,905.39/32,990.23 = 13,150.71/x
3. Step 3: Cross multiply
   23,905.39x = 32,990.23 × 13,150.71
4. Step 4: Simplify right side
   23,905.39x = 433,844,947.56
5. Step 5: Solve for x
   x = 433,844,947.56/23,905.39
6. Step 6: Final answer
   x = 18,148.42