Finding the Fourth Proportional to 10,780.89, 16,171.68 and 3,761.64

Step by Step Solution

1. Step 1: Write the proportion equation
   10,780.89 : 16,171.68 = 3,761.64 : x
2. Step 2: Convert to fraction form
   10,780.89/16,171.68 = 3,761.64/x
3. Step 3: Cross multiply
   10,780.89x = 16,171.68 × 3,761.64
4. Step 4: Simplify right side
   10,780.89x = 60,832,038.36
5. Step 5: Solve for x
   x = 60,832,038.36/10,780.89
6. Step 6: Final answer
   x = 5,642.58