Finding the Fourth Proportional to 21,853,458.18, 30,156,981.78 and 12,063,692.10

Step by Step Solution

1. Step 1: Write the proportion equation
   21,853,458.18 : 30,156,981.78 = 12,063,692.10 : x
2. Step 2: Convert to fraction form
   21,853,458.18/30,156,981.78 = 12,063,692.10/x
3. Step 3: Cross multiply
   21,853,458.18x = 30,156,981.78 × 12,063,692.10
4. Step 4: Simplify right side
   21,853,458.18x = 363,804,542,859,229.94
5. Step 5: Solve for x
   x = 363,804,542,859,229.94/21,853,458.18
6. Step 6: Final answer
   x = 16,647,458.72