Finding the Fourth Proportional to 7,100.91, 9,799.38 and 3,914.57

Step by Step Solution

1. Step 1: Write the proportion equation
   7,100.91 : 9,799.38 = 3,914.57 : x
2. Step 2: Convert to fraction form
   7,100.91/9,799.38 = 3,914.57/x
3. Step 3: Cross multiply
   7,100.91x = 9,799.38 × 3,914.57
4. Step 4: Simplify right side
   7,100.91x = 38,360,383.47
5. Step 5: Solve for x
   x = 38,360,383.47/7,100.91
6. Step 6: Final answer
   x = 5,402.18