Finding the Fourth Proportional to 21,644,150.43, 29,869,410.86 and 12,351,535.49

Step by Step Solution

1. Step 1: Write the proportion equation
   21,644,150.43 : 29,869,410.86 = 12,351,535.49 : x
2. Step 2: Convert to fraction form
   21,644,150.43/29,869,410.86 = 12,351,535.49/x
3. Step 3: Cross multiply
   21,644,150.43x = 29,869,410.86 × 12,351,535.49
4. Step 4: Simplify right side
   21,644,150.43x = 368,933,088,361,915.50
5. Step 5: Solve for x
   x = 368,933,088,361,915.50/21,644,150.43
6. Step 6: Final answer
   x = 17,045,394.76