Finding the Fourth Proportional to 11,861.19, 17,793.15 and 3,096.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,861.19 : 17,793.15 = 3,096.78 : x
2. Step 2: Convert to fraction form
   11,861.19/17,793.15 = 3,096.78/x
3. Step 3: Cross multiply
   11,861.19x = 17,793.15 × 3,096.78
4. Step 4: Simplify right side
   11,861.19x = 55,101,471.06
5. Step 5: Solve for x
   x = 55,101,471.06/11,861.19
6. Step 6: Final answer
   x = 4,645.53