Finding the Fourth Proportional to 7,019.97, 9,687.60 and 3,876.15

Step by Step Solution

1. Step 1: Write the proportion equation
   7,019.97 : 9,687.60 = 3,876.15 : x
2. Step 2: Convert to fraction form
   7,019.97/9,687.60 = 3,876.15/x
3. Step 3: Cross multiply
   7,019.97x = 9,687.60 × 3,876.15
4. Step 4: Simplify right side
   7,019.97x = 37,550,590.74
5. Step 5: Solve for x
   x = 37,550,590.74/7,019.97
6. Step 6: Final answer
   x = 5,349.11