Finding the Fourth Proportional to 6,127.99, 8,456.78 and 3,475.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,127.99 : 8,456.78 = 3,475.78 : x
2. Step 2: Convert to fraction form
   6,127.99/8,456.78 = 3,475.78/x
3. Step 3: Cross multiply
   6,127.99x = 8,456.78 × 3,475.78
4. Step 4: Simplify right side
   6,127.99x = 29,393,894.34
5. Step 5: Solve for x
   x = 29,393,894.34/6,127.99
6. Step 6: Final answer
   x = 4,796.66