Finding the Fourth Proportional to 10,687.30, 16,032.71 and 3,291.76

Step by Step Solution

1. Step 1: Write the proportion equation
   10,687.30 : 16,032.71 = 3,291.76 : x
2. Step 2: Convert to fraction form
   10,687.30/16,032.71 = 3,291.76/x
3. Step 3: Cross multiply
   10,687.30x = 16,032.71 × 3,291.76
4. Step 4: Simplify right side
   10,687.30x = 52,775,817.01
5. Step 5: Solve for x
   x = 52,775,817.01/10,687.30
6. Step 6: Final answer
   x = 4,938.18