Finding the Fourth Proportional to 10,770.01, 16,131.62 and 5,211.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,770.01 : 16,131.62 = 5,211.69 : x
2. Step 2: Convert to fraction form
   10,770.01/16,131.62 = 5,211.69/x
3. Step 3: Cross multiply
   10,770.01x = 16,131.62 × 5,211.69
4. Step 4: Simplify right side
   10,770.01x = 84,073,015.67
5. Step 5: Solve for x
   x = 84,073,015.67/10,770.01
6. Step 6: Final answer
   x = 7,806.22