Finding the Fourth Proportional to 10,065.12, 13,891.52 and 5,872.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,065.12 : 13,891.52 = 5,872.56 : x
2. Step 2: Convert to fraction form
   10,065.12/13,891.52 = 5,872.56/x
3. Step 3: Cross multiply
   10,065.12x = 13,891.52 × 5,872.56
4. Step 4: Simplify right side
   10,065.12x = 81,578,784.69
5. Step 5: Solve for x
   x = 81,578,784.69/10,065.12
6. Step 6: Final answer
   x = 8,105.10