Finding the Fourth Proportional to 23,100,514.72, 31,877,340.94 and 12,786,622.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,100,514.72 : 31,877,340.94 = 12,786,622.72 : x
2. Step 2: Convert to fraction form
   23,100,514.72/31,877,340.94 = 12,786,622.72/x
3. Step 3: Cross multiply
   23,100,514.72x = 31,877,340.94 × 12,786,622.72
4. Step 4: Simplify right side
   23,100,514.72x = 407,603,531,916,590.19
5. Step 5: Solve for x
   x = 407,603,531,916,590.19/23,100,514.72
6. Step 6: Final answer
   x = 17,644,781.38