Finding the Fourth Proportional to 7,098.74, 9,796.46 and 3,912.34

Step by Step Solution

1. Step 1: Write the proportion equation
   7,098.74 : 9,796.46 = 3,912.34 : x
2. Step 2: Convert to fraction form
   7,098.74/9,796.46 = 3,912.34/x
3. Step 3: Cross multiply
   7,098.74x = 9,796.46 × 3,912.34
4. Step 4: Simplify right side
   7,098.74x = 38,327,082.32
5. Step 5: Solve for x
   x = 38,327,082.32/7,098.74
6. Step 6: Final answer
   x = 5,399.14