Finding the Fourth Proportional to 10,796.10, 16,189.88 and 5,247.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,796.10 : 16,189.88 = 5,247.81 : x
2. Step 2: Convert to fraction form
   10,796.10/16,189.88 = 5,247.81/x
3. Step 3: Cross multiply
   10,796.10x = 16,189.88 × 5,247.81
4. Step 4: Simplify right side
   10,796.10x = 84,961,333.21
5. Step 5: Solve for x
   x = 84,961,333.21/10,796.10
6. Step 6: Final answer
   x = 7,869.63