Finding the Fourth Proportional to 23,128,741.42, 31,917,700.68 and 12,673,096.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,128,741.42 : 31,917,700.68 = 12,673,096.28 : x
2. Step 2: Convert to fraction form
   23,128,741.42/31,917,700.68 = 12,673,096.28/x
3. Step 3: Cross multiply
   23,128,741.42x = 31,917,700.68 × 12,673,096.28
4. Step 4: Simplify right side
   23,128,741.42x = 404,496,093,753,861.44
5. Step 5: Solve for x
   x = 404,496,093,753,861.44/23,128,741.42
6. Step 6: Final answer
   x = 17,488,893.43