Finding the Fourth Proportional to 5,209.89, 7,190.04 and 2,971.82

Step by Step Solution

1. Step 1: Write the proportion equation
   5,209.89 : 7,190.04 = 2,971.82 : x
2. Step 2: Convert to fraction form
   5,209.89/7,190.04 = 2,971.82/x
3. Step 3: Cross multiply
   5,209.89x = 7,190.04 × 2,971.82
4. Step 4: Simplify right side
   5,209.89x = 21,367,468.72
5. Step 5: Solve for x
   x = 21,367,468.72/5,209.89
6. Step 6: Final answer
   x = 4,101.33