Finding the Fourth Proportional to 47,513.31, 71,286.27 and 17,939.61

Step by Step Solution

1. Step 1: Write the proportion equation
   47,513.31 : 71,286.27 = 17,939.61 : x
2. Step 2: Convert to fraction form
   47,513.31/71,286.27 = 17,939.61/x
3. Step 3: Cross multiply
   47,513.31x = 71,286.27 × 17,939.61
4. Step 4: Simplify right side
   47,513.31x = 1,278,847,525.72
5. Step 5: Solve for x
   x = 1,278,847,525.72/47,513.31
6. Step 6: Final answer
   x = 26,915.56