Finding the Fourth Proportional to 9,406.78, 14,113.86 and 3,862.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,406.78 : 14,113.86 = 3,862.78 : x
2. Step 2: Convert to fraction form
   9,406.78/14,113.86 = 3,862.78/x
3. Step 3: Cross multiply
   9,406.78x = 14,113.86 × 3,862.78
4. Step 4: Simplify right side
   9,406.78x = 54,518,736.13
5. Step 5: Solve for x
   x = 54,518,736.13/9,406.78
6. Step 6: Final answer
   x = 5,795.69