Finding the Fourth Proportional to 10,930.86, 16,381.22 and 4,993.29

Step by Step Solution

1. Step 1: Write the proportion equation
   10,930.86 : 16,381.22 = 4,993.29 : x
2. Step 2: Convert to fraction form
   10,930.86/16,381.22 = 4,993.29/x
3. Step 3: Cross multiply
   10,930.86x = 16,381.22 × 4,993.29
4. Step 4: Simplify right side
   10,930.86x = 81,796,157.05
5. Step 5: Solve for x
   x = 81,796,157.05/10,930.86
6. Step 6: Final answer
   x = 7,483.05