Finding the Fourth Proportional to 33,487,648, 50,238,960 and 12,212,512

Step by Step Solution

1. Step 1: Write the proportion equation
   33,487,648 : 50,238,960 = 12,212,512 : x
2. Step 2: Convert to fraction form
   33,487,648/50,238,960 = 12,212,512/x
3. Step 3: Cross multiply
   33,487,648x = 50,238,960 × 12,212,512
4. Step 4: Simplify right side
   33,487,648x = 613,543,901,867,520
5. Step 5: Solve for x
   x = 613,543,901,867,520/33,487,648
6. Step 6: Final answer
   x = 18,321,498.78