Finding the Fourth Proportional to 12,109,949.43, 18,164,924.15 and 8,311,917.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,109,949.43 : 18,164,924.15 = 8,311,917.75 : x
2. Step 2: Convert to fraction form
   12,109,949.43/18,164,924.15 = 8,311,917.75/x
3. Step 3: Cross multiply
   12,109,949.43x = 18,164,924.15 × 8,311,917.75
4. Step 4: Simplify right side
   12,109,949.43x = 150,985,355,360,110.59
5. Step 5: Solve for x
   x = 150,985,355,360,110.59/12,109,949.43
6. Step 6: Final answer
   x = 12,467,876.62