Finding the Fourth Proportional to 172,544.88, 258,633 and 123,147.12

Step by Step Solution

1. Step 1: Write the proportion equation
   172,544.88 : 258,633 = 123,147.12 : x
2. Step 2: Convert to fraction form
   172,544.88/258,633 = 123,147.12/x
3. Step 3: Cross multiply
   172,544.88x = 258,633 × 123,147.12
4. Step 4: Simplify right side
   172,544.88x = 31,849,909,086.96
5. Step 5: Solve for x
   x = 31,849,909,086.96/172,544.88
6. Step 6: Final answer
   x = 184,589.13