Finding the Fourth Proportional to 10,772.56, 14,849.22 and 9,868.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,772.56 : 14,849.22 = 9,868.60 : x
2. Step 2: Convert to fraction form
   10,772.56/14,849.22 = 9,868.60/x
3. Step 3: Cross multiply
   10,772.56x = 14,849.22 × 9,868.60
4. Step 4: Simplify right side
   10,772.56x = 146,541,012.49
5. Step 5: Solve for x
   x = 146,541,012.49/10,772.56
6. Step 6: Final answer
   x = 13,603.17