Finding the Fourth Proportional to 21,945,429.50, 30,284,695.33 and 12,156,507.71

Step by Step Solution

1. Step 1: Write the proportion equation
   21,945,429.50 : 30,284,695.33 = 12,156,507.71 : x
2. Step 2: Convert to fraction form
   21,945,429.50/30,284,695.33 = 12,156,507.71/x
3. Step 3: Cross multiply
   21,945,429.50x = 30,284,695.33 × 12,156,507.71
4. Step 4: Simplify right side
   21,945,429.50x = 368,156,132,205,898.88
5. Step 5: Solve for x
   x = 368,156,132,205,898.88/21,945,429.50
6. Step 6: Final answer
   x = 16,775,982.09