Finding the Fourth Proportional to 13,394.16, 18,483.96 and 7,426.71

Step by Step Solution

1. Step 1: Write the proportion equation
   13,394.16 : 18,483.96 = 7,426.71 : x
2. Step 2: Convert to fraction form
   13,394.16/18,483.96 = 7,426.71/x
3. Step 3: Cross multiply
   13,394.16x = 18,483.96 × 7,426.71
4. Step 4: Simplify right side
   13,394.16x = 137,275,010.57
5. Step 5: Solve for x
   x = 137,275,010.57/13,394.16
6. Step 6: Final answer
   x = 10,248.87