Finding the Fourth Proportional to 33,258,139.43, 49,905,076.01 and 13,840,752.20

Step by Step Solution

1. Step 1: Write the proportion equation
   33,258,139.43 : 49,905,076.01 = 13,840,752.20 : x
2. Step 2: Convert to fraction form
   33,258,139.43/49,905,076.01 = 13,840,752.20/x
3. Step 3: Cross multiply
   33,258,139.43x = 49,905,076.01 × 13,840,752.20
4. Step 4: Simplify right side
   33,258,139.43x = 690,723,790,257,845.62
5. Step 5: Solve for x
   x = 690,723,790,257,845.62/33,258,139.43
6. Step 6: Final answer
   x = 20,768,563.79