Finding the Fourth Proportional to 21,981,814.68, 30,338,536.73 and 12,195,411.83

Step by Step Solution

1. Step 1: Write the proportion equation
   21,981,814.68 : 30,338,536.73 = 12,195,411.83 : x
2. Step 2: Convert to fraction form
   21,981,814.68/30,338,536.73 = 12,195,411.83/x
3. Step 3: Cross multiply
   21,981,814.68x = 30,338,536.73 × 12,195,411.83
4. Step 4: Simplify right side
   21,981,814.68x = 369,990,949,741,931.50
5. Step 5: Solve for x
   x = 369,990,949,741,931.50/21,981,814.68
6. Step 6: Final answer
   x = 16,831,683.60