Finding the Fourth Proportional to 7,690.88, 10,613.42 and 4,154.09

Step by Step Solution

1. Step 1: Write the proportion equation
   7,690.88 : 10,613.42 = 4,154.09 : x
2. Step 2: Convert to fraction form
   7,690.88/10,613.42 = 4,154.09/x
3. Step 3: Cross multiply
   7,690.88x = 10,613.42 × 4,154.09
4. Step 4: Simplify right side
   7,690.88x = 44,089,101.89
5. Step 5: Solve for x
   x = 44,089,101.89/7,690.88
6. Step 6: Final answer
   x = 5,732.65