Finding the Fourth Proportional to 345,141.92, 517,836.72 and 134,930.72

Step by Step Solution

1. Step 1: Write the proportion equation
   345,141.92 : 517,836.72 = 134,930.72 : x
2. Step 2: Convert to fraction form
   345,141.92/517,836.72 = 134,930.72/x
3. Step 3: Cross multiply
   345,141.92x = 517,836.72 × 134,930.72
4. Step 4: Simplify right side
   345,141.92x = 69,872,081,472.04
5. Step 5: Solve for x
   x = 69,872,081,472.04/345,141.92
6. Step 6: Final answer
   x = 202,444.49