Finding the Fourth Proportional to 14,156,758.14, 21,131,787.52 and 12,147,911.16

Step by Step Solution

1. Step 1: Write the proportion equation
   14,156,758.14 : 21,131,787.52 = 12,147,911.16 : x
2. Step 2: Convert to fraction form
   14,156,758.14/21,131,787.52 = 12,147,911.16/x
3. Step 3: Cross multiply
   14,156,758.14x = 21,131,787.52 × 12,147,911.16
4. Step 4: Simplify right side
   14,156,758.14x = 256,707,077,444,956.72
5. Step 5: Solve for x
   x = 256,707,077,444,956.72/14,156,758.14
6. Step 6: Final answer
   x = 18,133,182.39