Finding the Fourth Proportional to 8,780.81, 13,176.41 and 3,238.04

Step by Step Solution

1. Step 1: Write the proportion equation
   8,780.81 : 13,176.41 = 3,238.04 : x
2. Step 2: Convert to fraction form
   8,780.81/13,176.41 = 3,238.04/x
3. Step 3: Cross multiply
   8,780.81x = 13,176.41 × 3,238.04
4. Step 4: Simplify right side
   8,780.81x = 42,665,759.39
5. Step 5: Solve for x
   x = 42,665,759.39/8,780.81
6. Step 6: Final answer
   x = 4,858.98