Finding the Fourth Proportional to 5,300.78, 7,314.71 and 2,942.73

Step by Step Solution

1. Step 1: Write the proportion equation
   5,300.78 : 7,314.71 = 2,942.73 : x
2. Step 2: Convert to fraction form
   5,300.78/7,314.71 = 2,942.73/x
3. Step 3: Cross multiply
   5,300.78x = 7,314.71 × 2,942.73
4. Step 4: Simplify right side
   5,300.78x = 21,525,216.56
5. Step 5: Solve for x
   x = 21,525,216.56/5,300.78
6. Step 6: Final answer
   x = 4,060.76