Finding the Fourth Proportional to 20,373.33, 30,573.54 and 8,375.31

Step by Step Solution

1. Step 1: Write the proportion equation
   20,373.33 : 30,573.54 = 8,375.31 : x
2. Step 2: Convert to fraction form
   20,373.33/30,573.54 = 8,375.31/x
3. Step 3: Cross multiply
   20,373.33x = 30,573.54 × 8,375.31
4. Step 4: Simplify right side
   20,373.33x = 256,062,875.30
5. Step 5: Solve for x
   x = 256,062,875.30/20,373.33
6. Step 6: Final answer
   x = 12,568.53