Finding the Fourth Proportional to 13,326.33, 19,982.16 and 5,426.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,326.33 : 19,982.16 = 5,426.83 : x
2. Step 2: Convert to fraction form
   13,326.33/19,982.16 = 5,426.83/x
3. Step 3: Cross multiply
   13,326.33x = 19,982.16 × 5,426.83
4. Step 4: Simplify right side
   13,326.33x = 108,439,810.33
5. Step 5: Solve for x
   x = 108,439,810.33/13,326.33
6. Step 6: Final answer
   x = 8,137.26