Finding the Fourth Proportional to 8,878.43, 12,245.31 and 5,692.03

Step by Step Solution

1. Step 1: Write the proportion equation
   8,878.43 : 12,245.31 = 5,692.03 : x
2. Step 2: Convert to fraction form
   8,878.43/12,245.31 = 5,692.03/x
3. Step 3: Cross multiply
   8,878.43x = 12,245.31 × 5,692.03
4. Step 4: Simplify right side
   8,878.43x = 69,700,671.88
5. Step 5: Solve for x
   x = 69,700,671.88/8,878.43
6. Step 6: Final answer
   x = 7,850.56