Finding the Fourth Proportional to 172,552.80, 237,917.52 and 148,638.72

Step by Step Solution

1. Step 1: Write the proportion equation
   172,552.80 : 237,917.52 = 148,638.72 : x
2. Step 2: Convert to fraction form
   172,552.80/237,917.52 = 148,638.72/x
3. Step 3: Cross multiply
   172,552.80x = 237,917.52 × 148,638.72
4. Step 4: Simplify right side
   172,552.80x = 35,363,755,638.37
5. Step 5: Solve for x
   x = 35,363,755,638.37/172,552.80
6. Step 6: Final answer
   x = 204,944.55