Finding the Fourth Proportional to 10,643.69, 14,688.32 and 6,168.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,643.69 : 14,688.32 = 6,168.31 : x
2. Step 2: Convert to fraction form
   10,643.69/14,688.32 = 6,168.31/x
3. Step 3: Cross multiply
   10,643.69x = 14,688.32 × 6,168.31
4. Step 4: Simplify right side
   10,643.69x = 90,602,043.58
5. Step 5: Solve for x
   x = 90,602,043.58/10,643.69
6. Step 6: Final answer
   x = 8,512.28