Finding the Fourth Proportional to 39,601,315.98, 54,647,065.87 and 21,961,128.49

Step by Step Solution

1. Step 1: Write the proportion equation
   39,601,315.98 : 54,647,065.87 = 21,961,128.49 : x
2. Step 2: Convert to fraction form
   39,601,315.98/54,647,065.87 = 21,961,128.49/x
3. Step 3: Cross multiply
   39,601,315.98x = 54,647,065.87 × 21,961,128.49
4. Step 4: Simplify right side
   39,601,315.98x = 1,200,111,234,981,043.25
5. Step 5: Solve for x
   x = 1,200,111,234,981,043.25/39,601,315.98
6. Step 6: Final answer
   x = 30,304,832.18