Finding the Fourth Proportional to 12,172.06, 18,250.25 and 4,777.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,172.06 : 18,250.25 = 4,777.27 : x
2. Step 2: Convert to fraction form
   12,172.06/18,250.25 = 4,777.27/x
3. Step 3: Cross multiply
   12,172.06x = 18,250.25 × 4,777.27
4. Step 4: Simplify right side
   12,172.06x = 87,186,371.82
5. Step 5: Solve for x
   x = 87,186,371.82/12,172.06
6. Step 6: Final answer
   x = 7,162.83