Finding the Fourth Proportional to 8,457.33, 12,692.51 and 4,762.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,457.33 : 12,692.51 = 4,762.81 : x
2. Step 2: Convert to fraction form
   8,457.33/12,692.51 = 4,762.81/x
3. Step 3: Cross multiply
   8,457.33x = 12,692.51 × 4,762.81
4. Step 4: Simplify right side
   8,457.33x = 60,452,013.55
5. Step 5: Solve for x
   x = 60,452,013.55/8,457.33
6. Step 6: Final answer
   x = 7,147.88