Finding the Fourth Proportional to 8,662.70, 12,971.91 and 4,762.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,662.70 : 12,971.91 = 4,762.82 : x
2. Step 2: Convert to fraction form
   8,662.70/12,971.91 = 4,762.82/x
3. Step 3: Cross multiply
   8,662.70x = 12,971.91 × 4,762.82
4. Step 4: Simplify right side
   8,662.70x = 61,782,872.39
5. Step 5: Solve for x
   x = 61,782,872.39/8,662.70
6. Step 6: Final answer
   x = 7,132.06