Finding the Fourth Proportional to 123,912.74, 185,869.38 and 30,418.76

Step by Step Solution

1. Step 1: Write the proportion equation
   123,912.74 : 185,869.38 = 30,418.76 : x
2. Step 2: Convert to fraction form
   123,912.74/185,869.38 = 30,418.76/x
3. Step 3: Cross multiply
   123,912.74x = 185,869.38 × 30,418.76
4. Step 4: Simplify right side
   123,912.74x = 5,653,916,061.57
5. Step 5: Solve for x
   x = 5,653,916,061.57/123,912.74
6. Step 6: Final answer
   x = 45,628.21