Finding the Fourth Proportional to 21,031,945.74, 31,557,683.61 and 8,073,784.89

Step by Step Solution

1. Step 1: Write the proportion equation
   21,031,945.74 : 31,557,683.61 = 8,073,784.89 : x
2. Step 2: Convert to fraction form
   21,031,945.74/31,557,683.61 = 8,073,784.89/x
3. Step 3: Cross multiply
   21,031,945.74x = 31,557,683.61 × 8,073,784.89
4. Step 4: Simplify right side
   21,031,945.74x = 254,789,949,093,818.62
5. Step 5: Solve for x
   x = 254,789,949,093,818.62/21,031,945.74
6. Step 6: Final answer
   x = 12,114,425.94