Finding the Fourth Proportional to 5,003.99, 7,505.37 and 2,081.91

Step by Step Solution

1. Step 1: Write the proportion equation
   5,003.99 : 7,505.37 = 2,081.91 : x
2. Step 2: Convert to fraction form
   5,003.99/7,505.37 = 2,081.91/x
3. Step 3: Cross multiply
   5,003.99x = 7,505.37 × 2,081.91
4. Step 4: Simplify right side
   5,003.99x = 15,625,504.86
5. Step 5: Solve for x
   x = 15,625,504.86/5,003.99
6. Step 6: Final answer
   x = 3,122.61