Finding the Fourth Proportional to 12,909.34, 17,816.16 and 7,605.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,909.34 : 17,816.16 = 7,605.82 : x
2. Step 2: Convert to fraction form
   12,909.34/17,816.16 = 7,605.82/x
3. Step 3: Cross multiply
   12,909.34x = 17,816.16 × 7,605.82
4. Step 4: Simplify right side
   12,909.34x = 135,506,506.05
5. Step 5: Solve for x
   x = 135,506,506.05/12,909.34
6. Step 6: Final answer
   x = 10,496.78