Finding the Fourth Proportional to 171,949.91, 257,684.61 and 146,516.57

Step by Step Solution

1. Step 1: Write the proportion equation
   171,949.91 : 257,684.61 = 146,516.57 : x
2. Step 2: Convert to fraction form
   171,949.91/257,684.61 = 146,516.57/x
3. Step 3: Cross multiply
   171,949.91x = 257,684.61 × 146,516.57
4. Step 4: Simplify right side
   171,949.91x = 37,755,065,426.32
5. Step 5: Solve for x
   x = 37,755,065,426.32/171,949.91
6. Step 6: Final answer
   x = 219,570.14