Finding the Fourth Proportional to 21,451,942.82, 29,613,223.41 and 12,752,931.62

Step by Step Solution

1. Step 1: Write the proportion equation
   21,451,942.82 : 29,613,223.41 = 12,752,931.62 : x
2. Step 2: Convert to fraction form
   21,451,942.82/29,613,223.41 = 12,752,931.62/x
3. Step 3: Cross multiply
   21,451,942.82x = 29,613,223.41 × 12,752,931.62
4. Step 4: Simplify right side
   21,451,942.82x = 377,655,413,195,513.19
5. Step 5: Solve for x
   x = 377,655,413,195,513.19/21,451,942.82
6. Step 6: Final answer
   x = 17,604,718.43