Finding the Fourth Proportional to 79,896.78, 119,806.29 and 42,474.78

Step by Step Solution

1. Step 1: Write the proportion equation
   79,896.78 : 119,806.29 = 42,474.78 : x
2. Step 2: Convert to fraction form
   79,896.78/119,806.29 = 42,474.78/x
3. Step 3: Cross multiply
   79,896.78x = 119,806.29 × 42,474.78
4. Step 4: Simplify right side
   79,896.78x = 5,088,745,810.37
5. Step 5: Solve for x
   x = 5,088,745,810.37/79,896.78
6. Step 6: Final answer
   x = 63,691.50