Finding the Fourth Proportional to 7,074.72, 10,602.78 and 3,954.60

Step by Step Solution

1. Step 1: Write the proportion equation
   7,074.72 : 10,602.78 = 3,954.60 : x
2. Step 2: Convert to fraction form
   7,074.72/10,602.78 = 3,954.60/x
3. Step 3: Cross multiply
   7,074.72x = 10,602.78 × 3,954.60
4. Step 4: Simplify right side
   7,074.72x = 41,929,753.79
5. Step 5: Solve for x
   x = 41,929,753.79/7,074.72
6. Step 6: Final answer
   x = 5,926.70