Finding the Fourth Proportional to 11,878.46, 17,817.01 and 3,113.37

Step by Step Solution

1. Step 1: Write the proportion equation
   11,878.46 : 17,817.01 = 3,113.37 : x
2. Step 2: Convert to fraction form
   11,878.46/17,817.01 = 3,113.37/x
3. Step 3: Cross multiply
   11,878.46x = 17,817.01 × 3,113.37
4. Step 4: Simplify right side
   11,878.46x = 55,470,944.42
5. Step 5: Solve for x
   x = 55,470,944.42/11,878.46
6. Step 6: Final answer
   x = 4,669.88