Finding the Fourth Proportional to 8,762.98, 13,136.37 and 3,215.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,762.98 : 13,136.37 = 3,215.02 : x
2. Step 2: Convert to fraction form
   8,762.98/13,136.37 = 3,215.02/x
3. Step 3: Cross multiply
   8,762.98x = 13,136.37 × 3,215.02
4. Step 4: Simplify right side
   8,762.98x = 42,233,692.28
5. Step 5: Solve for x
   x = 42,233,692.28/8,762.98
6. Step 6: Final answer
   x = 4,819.56