Finding the Fourth Proportional to 17,333.91, 23,920.65 and 9,780.15

Step by Step Solution

1. Step 1: Write the proportion equation
   17,333.91 : 23,920.65 = 9,780.15 : x
2. Step 2: Convert to fraction form
   17,333.91/23,920.65 = 9,780.15/x
3. Step 3: Cross multiply
   17,333.91x = 23,920.65 × 9,780.15
4. Step 4: Simplify right side
   17,333.91x = 233,947,545.10
5. Step 5: Solve for x
   x = 233,947,545.10/17,333.91
6. Step 6: Final answer
   x = 13,496.52