Finding the Fourth Proportional to 7,054.59, 9,735.34 and 3,910.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,054.59 : 9,735.34 = 3,910.78 : x
2. Step 2: Convert to fraction form
   7,054.59/9,735.34 = 3,910.78/x
3. Step 3: Cross multiply
   7,054.59x = 9,735.34 × 3,910.78
4. Step 4: Simplify right side
   7,054.59x = 38,072,782.69
5. Step 5: Solve for x
   x = 38,072,782.69/7,054.59
6. Step 6: Final answer
   x = 5,396.88