Finding the Fourth Proportional to 10,778.61, 16,158.20 and 3,851.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,778.61 : 16,158.20 = 3,851.49 : x
2. Step 2: Convert to fraction form
   10,778.61/16,158.20 = 3,851.49/x
3. Step 3: Cross multiply
   10,778.61x = 16,158.20 × 3,851.49
4. Step 4: Simplify right side
   10,778.61x = 62,233,126.46
5. Step 5: Solve for x
   x = 62,233,126.46/10,778.61
6. Step 6: Final answer
   x = 5,773.76