Finding the Fourth Proportional to 22,112,680.44, 30,514,156.65 and 12,189,128.25

Step by Step Solution

1. Step 1: Write the proportion equation
   22,112,680.44 : 30,514,156.65 = 12,189,128.25 : x
2. Step 2: Convert to fraction form
   22,112,680.44/30,514,156.65 = 12,189,128.25/x
3. Step 3: Cross multiply
   22,112,680.44x = 30,514,156.65 × 12,189,128.25
4. Step 4: Simplify right side
   22,112,680.44x = 371,940,968,847,440.38
5. Step 5: Solve for x
   x = 371,940,968,847,440.38/22,112,680.44
6. Step 6: Final answer
   x = 16,820,257.04