Finding the Fourth Proportional to 10,797.12, 16,186.72 and 3,869.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,797.12 : 16,186.72 = 3,869.76 : x
2. Step 2: Convert to fraction form
   10,797.12/16,186.72 = 3,869.76/x
3. Step 3: Cross multiply
   10,797.12x = 16,186.72 × 3,869.76
4. Step 4: Simplify right side
   10,797.12x = 62,638,721.59
5. Step 5: Solve for x
   x = 62,638,721.59/10,797.12
6. Step 6: Final answer
   x = 5,801.43