Finding the Fourth Proportional to 21,945,377.58, 30,285,304.50 and 12,156,732.60

Step by Step Solution

1. Step 1: Write the proportion equation
   21,945,377.58 : 30,285,304.50 = 12,156,732.60 : x
2. Step 2: Convert to fraction form
   21,945,377.58/30,285,304.50 = 12,156,732.60/x
3. Step 3: Cross multiply
   21,945,377.58x = 30,285,304.50 × 12,156,732.60
4. Step 4: Simplify right side
   21,945,377.58x = 368,170,348,516,076.69
5. Step 5: Solve for x
   x = 368,170,348,516,076.69/21,945,377.58
6. Step 6: Final answer
   x = 16,776,669.58