Finding the Fourth Proportional to 12,787,291.68, 19,178,626.56 and 3,687,151.86

Step by Step Solution

1. Step 1: Write the proportion equation
   12,787,291.68 : 19,178,626.56 = 3,687,151.86 : x
2. Step 2: Convert to fraction form
   12,787,291.68/19,178,626.56 = 3,687,151.86/x
3. Step 3: Cross multiply
   12,787,291.68x = 19,178,626.56 × 3,687,151.86
4. Step 4: Simplify right side
   12,787,291.68x = 70,714,508,592,949.39
5. Step 5: Solve for x
   x = 70,714,508,592,949.39/12,787,291.68
6. Step 6: Final answer
   x = 5,530,061.44