Finding the Fourth Proportional to 11,863.74, 17,796.42 and 4,078.02

Step by Step Solution

1. Step 1: Write the proportion equation
   11,863.74 : 17,796.42 = 4,078.02 : x
2. Step 2: Convert to fraction form
   11,863.74/17,796.42 = 4,078.02/x
3. Step 3: Cross multiply
   11,863.74x = 17,796.42 × 4,078.02
4. Step 4: Simplify right side
   11,863.74x = 72,574,156.69
5. Step 5: Solve for x
   x = 72,574,156.69/11,863.74
6. Step 6: Final answer
   x = 6,117.31