Finding the Fourth Proportional to 11,326.60, 16,983.19 and 3,426.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,326.60 : 16,983.19 = 3,426.72 : x
2. Step 2: Convert to fraction form
   11,326.60/16,983.19 = 3,426.72/x
3. Step 3: Cross multiply
   11,326.60x = 16,983.19 × 3,426.72
4. Step 4: Simplify right side
   11,326.60x = 58,196,653.69
5. Step 5: Solve for x
   x = 58,196,653.69/11,326.60
6. Step 6: Final answer
   x = 5,138.05