Finding the Fourth Proportional to 5,308.15, 7,954.69 and 3,910.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,308.15 : 7,954.69 = 3,910.50 : x
2. Step 2: Convert to fraction form
   5,308.15/7,954.69 = 3,910.50/x
3. Step 3: Cross multiply
   5,308.15x = 7,954.69 × 3,910.50
4. Step 4: Simplify right side
   5,308.15x = 31,106,815.25
5. Step 5: Solve for x
   x = 31,106,815.25/5,308.15
6. Step 6: Final answer
   x = 5,860.20