Finding the Fourth Proportional to 122,284,949.04, 168,688,910.88 and 72,690,046.56

Step by Step Solution

1. Step 1: Write the proportion equation
   122,284,949.04 : 168,688,910.88 = 72,690,046.56 : x
2. Step 2: Convert to fraction form
   122,284,949.04/168,688,910.88 = 72,690,046.56/x
3. Step 3: Cross multiply
   122,284,949.04x = 168,688,910.88 × 72,690,046.56
4. Step 4: Simplify right side
   122,284,949.04x = 12,262,004,786,022,890
5. Step 5: Solve for x
   x = 12,262,004,786,022,890/122,284,949.04
6. Step 6: Final answer
   x = 100,274,031.12