Finding the Fourth Proportional to 13,100.85, 18,080.69 and 7,795.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,100.85 : 18,080.69 = 7,795.62 : x
2. Step 2: Convert to fraction form
   13,100.85/18,080.69 = 7,795.62/x
3. Step 3: Cross multiply
   13,100.85x = 18,080.69 × 7,795.62
4. Step 4: Simplify right side
   13,100.85x = 140,950,149.60
5. Step 5: Solve for x
   x = 140,950,149.60/13,100.85
6. Step 6: Final answer
   x = 10,758.86