Finding the Fourth Proportional to 12,146.96, 18,208.82 and 4,748.96

Step by Step Solution

1. Step 1: Write the proportion equation
   12,146.96 : 18,208.82 = 4,748.96 : x
2. Step 2: Convert to fraction form
   12,146.96/18,208.82 = 4,748.96/x
3. Step 3: Cross multiply
   12,146.96x = 18,208.82 × 4,748.96
4. Step 4: Simplify right side
   12,146.96x = 86,472,957.83
5. Step 5: Solve for x
   x = 86,472,957.83/12,146.96
6. Step 6: Final answer
   x = 7,118.90