Finding the Fourth Proportional to 10,778.56, 16,167.72 and 2,881.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,778.56 : 16,167.72 = 2,881.06 : x
2. Step 2: Convert to fraction form
   10,778.56/16,167.72 = 2,881.06/x
3. Step 3: Cross multiply
   10,778.56x = 16,167.72 × 2,881.06
4. Step 4: Simplify right side
   10,778.56x = 46,580,171.38
5. Step 5: Solve for x
   x = 46,580,171.38/10,778.56
6. Step 6: Final answer
   x = 4,321.56