Finding the Fourth Proportional to 17,334.51, 23,919.55 and 9,780.40

Step by Step Solution

1. Step 1: Write the proportion equation
   17,334.51 : 23,919.55 = 9,780.40 : x
2. Step 2: Convert to fraction form
   17,334.51/23,919.55 = 9,780.40/x
3. Step 3: Cross multiply
   17,334.51x = 23,919.55 × 9,780.40
4. Step 4: Simplify right side
   17,334.51x = 233,942,766.82
5. Step 5: Solve for x
   x = 233,942,766.82/17,334.51
6. Step 6: Final answer
   x = 13,495.78