Finding the Fourth Proportional to 10,544.45, 15,814.89 and 5,277.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,544.45 : 15,814.89 = 5,277.69 : x
2. Step 2: Convert to fraction form
   10,544.45/15,814.89 = 5,277.69/x
3. Step 3: Cross multiply
   10,544.45x = 15,814.89 × 5,277.69
4. Step 4: Simplify right side
   10,544.45x = 83,466,086.80
5. Step 5: Solve for x
   x = 83,466,086.80/10,544.45
6. Step 6: Final answer
   x = 7,915.65