Finding the Fourth Proportional to 12,074,755.32, 18,108,290.34 and 3,986,224.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,074,755.32 : 18,108,290.34 = 3,986,224.92 : x
2. Step 2: Convert to fraction form
   12,074,755.32/18,108,290.34 = 3,986,224.92/x
3. Step 3: Cross multiply
   12,074,755.32x = 18,108,290.34 × 3,986,224.92
4. Step 4: Simplify right side
   12,074,755.32x = 72,183,718,211,903.27
5. Step 5: Solve for x
   x = 72,183,718,211,903.27/12,074,755.32
6. Step 6: Final answer
   x = 5,978,068.81