Finding the Fourth Proportional to 10,781.16, 16,158.78 and 5,850.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,781.16 : 16,158.78 = 5,850.60 : x
2. Step 2: Convert to fraction form
   10,781.16/16,158.78 = 5,850.60/x
3. Step 3: Cross multiply
   10,781.16x = 16,158.78 × 5,850.60
4. Step 4: Simplify right side
   10,781.16x = 94,538,558.27
5. Step 5: Solve for x
   x = 94,538,558.27/10,781.16
6. Step 6: Final answer
   x = 8,768.87