Finding the Fourth Proportional to 14,156,760.14, 21,131,790.50 and 12,147,913.16

Step by Step Solution

1. Step 1: Write the proportion equation
   14,156,760.14 : 21,131,790.50 = 12,147,913.16 : x
2. Step 2: Convert to fraction form
   14,156,760.14/21,131,790.50 = 12,147,913.16/x
3. Step 3: Cross multiply
   14,156,760.14x = 21,131,790.50 × 12,147,913.16
4. Step 4: Simplify right side
   14,156,760.14x = 256,707,155,742,914.47
5. Step 5: Solve for x
   x = 256,707,155,742,914.47/14,156,760.14
6. Step 6: Final answer
   x = 18,133,185.37