Finding the Fourth Proportional to 16,947.50, 23,387.40 and 9,394.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,947.50 : 23,387.40 = 9,394.25 : x
2. Step 2: Convert to fraction form
   16,947.50/23,387.40 = 9,394.25/x
3. Step 3: Cross multiply
   16,947.50x = 23,387.40 × 9,394.25
4. Step 4: Simplify right side
   16,947.50x = 219,706,965.51
5. Step 5: Solve for x
   x = 219,706,965.51/16,947.50
6. Step 6: Final answer
   x = 12,963.98