Finding the Fourth Proportional to 11,908.80, 16,426.35 and 7,653.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,908.80 : 16,426.35 = 7,653.15 : x
2. Step 2: Convert to fraction form
   11,908.80/16,426.35 = 7,653.15/x
3. Step 3: Cross multiply
   11,908.80x = 16,426.35 × 7,653.15
4. Step 4: Simplify right side
   11,908.80x = 125,713,320.50
5. Step 5: Solve for x
   x = 125,713,320.50/11,908.80
6. Step 6: Final answer
   x = 10,556.34