Finding the Fourth Proportional to 7,100.85, 9,799.18 and 4,118.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,100.85 : 9,799.18 = 4,118.42 : x
2. Step 2: Convert to fraction form
   7,100.85/9,799.18 = 4,118.42/x
3. Step 3: Cross multiply
   7,100.85x = 9,799.18 × 4,118.42
4. Step 4: Simplify right side
   7,100.85x = 40,357,138.90
5. Step 5: Solve for x
   x = 40,357,138.90/7,100.85
6. Step 6: Final answer
   x = 5,683.42