Finding the Fourth Proportional to 8,435.82, 11,642.37 and 5,078.79

Step by Step Solution

1. Step 1: Write the proportion equation
   8,435.82 : 11,642.37 = 5,078.79 : x
2. Step 2: Convert to fraction form
   8,435.82/11,642.37 = 5,078.79/x
3. Step 3: Cross multiply
   8,435.82x = 11,642.37 × 5,078.79
4. Step 4: Simplify right side
   8,435.82x = 59,129,152.33
5. Step 5: Solve for x
   x = 59,129,152.33/8,435.82
6. Step 6: Final answer
   x = 7,009.30