Finding the Fourth Proportional to 10,778.58, 16,162.38 and 4,930.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,778.58 : 16,162.38 = 4,930.16 : x
2. Step 2: Convert to fraction form
   10,778.58/16,162.38 = 4,930.16/x
3. Step 3: Cross multiply
   10,778.58x = 16,162.38 × 4,930.16
4. Step 4: Simplify right side
   10,778.58x = 79,683,038.57
5. Step 5: Solve for x
   x = 79,683,038.57/10,778.58
6. Step 6: Final answer
   x = 7,392.72