Finding the Fourth Proportional to 7,100.74, 9,799.09 and 3,914.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,100.74 : 9,799.09 = 3,914.15 : x
2. Step 2: Convert to fraction form
   7,100.74/9,799.09 = 3,914.15/x
3. Step 3: Cross multiply
   7,100.74x = 9,799.09 × 3,914.15
4. Step 4: Simplify right side
   7,100.74x = 38,355,108.12
5. Step 5: Solve for x
   x = 38,355,108.12/7,100.74
6. Step 6: Final answer
   x = 5,401.56