Finding the Fourth Proportional to 173,288.18, 259,879.34 and 73,446.50

Step by Step Solution

1. Step 1: Write the proportion equation
   173,288.18 : 259,879.34 = 73,446.50 : x
2. Step 2: Convert to fraction form
   173,288.18/259,879.34 = 73,446.50/x
3. Step 3: Cross multiply
   173,288.18x = 259,879.34 × 73,446.50
4. Step 4: Simplify right side
   173,288.18x = 19,087,227,945.31
5. Step 5: Solve for x
   x = 19,087,227,945.31/173,288.18
6. Step 6: Final answer
   x = 110,147.32