Finding the Fourth Proportional to 10,390.72, 14,339.10 and 5,914.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,390.72 : 14,339.10 = 5,914.48 : x
2. Step 2: Convert to fraction form
   10,390.72/14,339.10 = 5,914.48/x
3. Step 3: Cross multiply
   10,390.72x = 14,339.10 × 5,914.48
4. Step 4: Simplify right side
   10,390.72x = 84,808,320.17
5. Step 5: Solve for x
   x = 84,808,320.17/10,390.72
6. Step 6: Final answer
   x = 8,161.93