Finding the Fourth Proportional to 7,100.22, 9,799.47 and 3,957.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,100.22 : 9,799.47 = 3,957.42 : x
2. Step 2: Convert to fraction form
   7,100.22/9,799.47 = 3,957.42/x
3. Step 3: Cross multiply
   7,100.22x = 9,799.47 × 3,957.42
4. Step 4: Simplify right side
   7,100.22x = 38,780,618.57
5. Step 5: Solve for x
   x = 38,780,618.57/7,100.22
6. Step 6: Final answer
   x = 5,461.89