Finding the Fourth Proportional to 10,350.72, 15,515.82 and 4,107.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,350.72 : 15,515.82 = 4,107.06 : x
2. Step 2: Convert to fraction form
   10,350.72/15,515.82 = 4,107.06/x
3. Step 3: Cross multiply
   10,350.72x = 15,515.82 × 4,107.06
4. Step 4: Simplify right side
   10,350.72x = 63,724,403.69
5. Step 5: Solve for x
   x = 63,724,403.69/10,350.72
6. Step 6: Final answer
   x = 6,156.52