Finding the Fourth Proportional to 7,100.80, 9,798.24 and 3,955.84

Step by Step Solution

1. Step 1: Write the proportion equation
   7,100.80 : 9,798.24 = 3,955.84 : x
2. Step 2: Convert to fraction form
   7,100.80/9,798.24 = 3,955.84/x
3. Step 3: Cross multiply
   7,100.80x = 9,798.24 × 3,955.84
4. Step 4: Simplify right side
   7,100.80x = 38,760,269.72
5. Step 5: Solve for x
   x = 38,760,269.72/7,100.80
6. Step 6: Final answer
   x = 5,458.58