Finding the Fourth Proportional to 21,895,517.42, 30,214,594.04 and 12,105,390.05

Step by Step Solution

1. Step 1: Write the proportion equation
   21,895,517.42 : 30,214,594.04 = 12,105,390.05 : x
2. Step 2: Convert to fraction form
   21,895,517.42/30,214,594.04 = 12,105,390.05/x
3. Step 3: Cross multiply
   21,895,517.42x = 30,214,594.04 × 12,105,390.05
4. Step 4: Simplify right side
   21,895,517.42x = 365,759,446,056,605.31
5. Step 5: Solve for x
   x = 365,759,446,056,605.31/21,895,517.42
6. Step 6: Final answer
   x = 16,704,763.77