Finding the Fourth Proportional to 8,878.29, 13,315.61 and 4,196.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,878.29 : 13,315.61 = 4,196.31 : x
2. Step 2: Convert to fraction form
   8,878.29/13,315.61 = 4,196.31/x
3. Step 3: Cross multiply
   8,878.29x = 13,315.61 × 4,196.31
4. Step 4: Simplify right side
   8,878.29x = 55,876,406.42
5. Step 5: Solve for x
   x = 55,876,406.42/8,878.29
6. Step 6: Final answer
   x = 6,293.60