Finding the Fourth Proportional to 10,776.81, 16,154.72 and 5,153.01

Step by Step Solution

1. Step 1: Write the proportion equation
   10,776.81 : 16,154.72 = 5,153.01 : x
2. Step 2: Convert to fraction form
   10,776.81/16,154.72 = 5,153.01/x
3. Step 3: Cross multiply
   10,776.81x = 16,154.72 × 5,153.01
4. Step 4: Simplify right side
   10,776.81x = 83,245,433.71
5. Step 5: Solve for x
   x = 83,245,433.71/10,776.81
6. Step 6: Final answer
   x = 7,724.50