Finding the Fourth Proportional to 10,893.46, 16,341.72 and 4,320.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,893.46 : 16,341.72 = 4,320.31 : x
2. Step 2: Convert to fraction form
   10,893.46/16,341.72 = 4,320.31/x
3. Step 3: Cross multiply
   10,893.46x = 16,341.72 × 4,320.31
4. Step 4: Simplify right side
   10,893.46x = 70,601,296.33
5. Step 5: Solve for x
   x = 70,601,296.33/10,893.46
6. Step 6: Final answer
   x = 6,481.07