Finding the Fourth Proportional to 7,084.77, 9,776.37 and 4,100.78

Step by Step Solution

1. Step 1: Write the proportion equation
   7,084.77 : 9,776.37 = 4,100.78 : x
2. Step 2: Convert to fraction form
   7,084.77/9,776.37 = 4,100.78/x
3. Step 3: Cross multiply
   7,084.77x = 9,776.37 × 4,100.78
4. Step 4: Simplify right side
   7,084.77x = 40,090,782.39
5. Step 5: Solve for x
   x = 40,090,782.39/7,084.77
6. Step 6: Final answer
   x = 5,658.73