Finding the Fourth Proportional to 219,935.16, 303,439.98 and 123,124.79

Step by Step Solution

1. Step 1: Write the proportion equation
   219,935.16 : 303,439.98 = 123,124.79 : x
2. Step 2: Convert to fraction form
   219,935.16/303,439.98 = 123,124.79/x
3. Step 3: Cross multiply
   219,935.16x = 303,439.98 × 123,124.79
4. Step 4: Simplify right side
   219,935.16x = 37,360,983,815.10
5. Step 5: Solve for x
   x = 37,360,983,815.10/219,935.16
6. Step 6: Final answer
   x = 169,872.72