Finding the Fourth Proportional to 23,128,782.66, 31,917,757.59 and 12,673,137.53

Step by Step Solution

1. Step 1: Write the proportion equation
   23,128,782.66 : 31,917,757.59 = 12,673,137.53 : x
2. Step 2: Convert to fraction form
   23,128,782.66/31,917,757.59 = 12,673,137.53/x
3. Step 3: Cross multiply
   23,128,782.66x = 31,917,757.59 × 12,673,137.53
4. Step 4: Simplify right side
   23,128,782.66x = 404,498,131,427,682.56
5. Step 5: Solve for x
   x = 404,498,131,427,682.56/23,128,782.66
6. Step 6: Final answer
   x = 17,488,950.34