Finding the Fourth Proportional to 14,156,789.12, 21,131,833.82 and 12,147,942.24

Step by Step Solution

1. Step 1: Write the proportion equation
   14,156,789.12 : 21,131,833.82 = 12,147,942.24 : x
2. Step 2: Convert to fraction form
   14,156,789.12/21,131,833.82 = 12,147,942.24/x
3. Step 3: Cross multiply
   14,156,789.12x = 21,131,833.82 × 12,147,942.24
4. Step 4: Simplify right side
   14,156,789.12x = 256,708,296,670,638.56
5. Step 5: Solve for x
   x = 256,708,296,670,638.56/14,156,789.12
6. Step 6: Final answer
   x = 18,133,228.83