Finding the Fourth Proportional to 6,020.78, 8,300.94 and 5,012.42

Step by Step Solution

1. Step 1: Write the proportion equation
   6,020.78 : 8,300.94 = 5,012.42 : x
2. Step 2: Convert to fraction form
   6,020.78/8,300.94 = 5,012.42/x
3. Step 3: Cross multiply
   6,020.78x = 8,300.94 × 5,012.42
4. Step 4: Simplify right side
   6,020.78x = 41,607,797.67
5. Step 5: Solve for x
   x = 41,607,797.67/6,020.78
6. Step 6: Final answer
   x = 6,910.70