Finding the Fourth Proportional to 122,086.25, 168,481.25 and 73,688.24

Step by Step Solution

1. Step 1: Write the proportion equation
   122,086.25 : 168,481.25 = 73,688.24 : x
2. Step 2: Convert to fraction form
   122,086.25/168,481.25 = 73,688.24/x
3. Step 3: Cross multiply
   122,086.25x = 168,481.25 × 73,688.24
4. Step 4: Simplify right side
   122,086.25x = 12,415,087,114.59
5. Step 5: Solve for x
   x = 12,415,087,114.59/122,086.25
6. Step 6: Final answer
   x = 101,691.12