Finding the Fourth Proportional to 10,778.78, 16,162.69 and 4,930.38

Step by Step Solution

1. Step 1: Write the proportion equation
   10,778.78 : 16,162.69 = 4,930.38 : x
2. Step 2: Convert to fraction form
   10,778.78/16,162.69 = 4,930.38/x
3. Step 3: Cross multiply
   10,778.78x = 16,162.69 × 4,930.38
4. Step 4: Simplify right side
   10,778.78x = 79,688,203.52
5. Step 5: Solve for x
   x = 79,688,203.52/10,778.78
6. Step 6: Final answer
   x = 7,393.06