Finding the Fourth Proportional to 10,731.63, 16,091.82 and 4,490.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,731.63 : 16,091.82 = 4,490.49 : x
2. Step 2: Convert to fraction form
   10,731.63/16,091.82 = 4,490.49/x
3. Step 3: Cross multiply
   10,731.63x = 16,091.82 × 4,490.49
4. Step 4: Simplify right side
   10,731.63x = 72,260,156.79
5. Step 5: Solve for x
   x = 72,260,156.79/10,731.63
6. Step 6: Final answer
   x = 6,733.38