Finding the Fourth Proportional to 21,808,162.72, 30,095,470.20 and 12,018,959.92

Step by Step Solution

1. Step 1: Write the proportion equation
   21,808,162.72 : 30,095,470.20 = 12,018,959.92 : x
2. Step 2: Convert to fraction form
   21,808,162.72/30,095,470.20 = 12,018,959.92/x
3. Step 3: Cross multiply
   21,808,162.72x = 30,095,470.20 × 12,018,959.92
4. Step 4: Simplify right side
   21,808,162.72x = 361,716,250,107,354.38
5. Step 5: Solve for x
   x = 361,716,250,107,354.38/21,808,162.72
6. Step 6: Final answer
   x = 16,586,278.03