Finding the Fourth Proportional to 21,853,404.05, 30,156,907.25 and 12,063,638.04

Step by Step Solution

1. Step 1: Write the proportion equation
   21,853,404.05 : 30,156,907.25 = 12,063,638.04 : x
2. Step 2: Convert to fraction form
   21,853,404.05/30,156,907.25 = 12,063,638.04/x
3. Step 3: Cross multiply
   21,853,404.05x = 30,156,907.25 × 12,063,638.04
4. Step 4: Simplify right side
   21,853,404.05x = 363,802,013,446,308.62
5. Step 5: Solve for x
   x = 363,802,013,446,308.62/21,853,404.05
6. Step 6: Final answer
   x = 16,647,384.21