Finding the Fourth Proportional to 172,900.52, 259,251.12 and 67,662.08

Step by Step Solution

1. Step 1: Write the proportion equation
   172,900.52 : 259,251.12 = 67,662.08 : x
2. Step 2: Convert to fraction form
   172,900.52/259,251.12 = 67,662.08/x
3. Step 3: Cross multiply
   172,900.52x = 259,251.12 × 67,662.08
4. Step 4: Simplify right side
   172,900.52x = 17,541,470,021.53
5. Step 5: Solve for x
   x = 17,541,470,021.53/172,900.52
6. Step 6: Final answer
   x = 101,454.12