Finding the Fourth Proportional to 23,128,740.42, 31,917,699.30 and 12,673,095.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,128,740.42 : 31,917,699.30 = 12,673,095.28 : x
2. Step 2: Convert to fraction form
   23,128,740.42/31,917,699.30 = 12,673,095.28/x
3. Step 3: Cross multiply
   23,128,740.42x = 31,917,699.30 × 12,673,095.28
4. Step 4: Simplify right side
   23,128,740.42x = 404,496,044,347,289.31
5. Step 5: Solve for x
   x = 404,496,044,347,289.31/23,128,740.42
6. Step 6: Final answer
   x = 17,488,892.05