Finding the Fourth Proportional to 172,646.37, 258,901.52 and 83,873.61

Step by Step Solution

1. Step 1: Write the proportion equation
   172,646.37 : 258,901.52 = 83,873.61 : x
2. Step 2: Convert to fraction form
   172,646.37/258,901.52 = 83,873.61/x
3. Step 3: Cross multiply
   172,646.37x = 258,901.52 × 83,873.61
4. Step 4: Simplify right side
   172,646.37x = 21,715,004,697.52
5. Step 5: Solve for x
   x = 21,715,004,697.52/172,646.37
6. Step 6: Final answer
   x = 125,777.36