Finding the Fourth Proportional to 17,905.31, 24,708.15 and 9,947.54

Step by Step Solution

1. Step 1: Write the proportion equation
   17,905.31 : 24,708.15 = 9,947.54 : x
2. Step 2: Convert to fraction form
   17,905.31/24,708.15 = 9,947.54/x
3. Step 3: Cross multiply
   17,905.31x = 24,708.15 × 9,947.54
4. Step 4: Simplify right side
   17,905.31x = 245,785,310.45
5. Step 5: Solve for x
   x = 245,785,310.45/17,905.31
6. Step 6: Final answer
   x = 13,726.95