Finding the Fourth Proportional to 21,947,379.37, 30,286,986.82 and 12,157,793.28

Step by Step Solution

1. Step 1: Write the proportion equation
   21,947,379.37 : 30,286,986.82 = 12,157,793.28 : x
2. Step 2: Convert to fraction form
   21,947,379.37/30,286,986.82 = 12,157,793.28/x
3. Step 3: Cross multiply
   21,947,379.37x = 30,286,986.82 × 12,157,793.28
4. Step 4: Simplify right side
   21,947,379.37x = 368,222,924,801,250.06
5. Step 5: Solve for x
   x = 368,222,924,801,250.06/21,947,379.37
6. Step 6: Final answer
   x = 16,777,534.97