Finding the Fourth Proportional to 21,796,734, 30,080,426.07 and 12,138,942

Step by Step Solution

1. Step 1: Write the proportion equation
   21,796,734 : 30,080,426.07 = 12,138,942 : x
2. Step 2: Convert to fraction form
   21,796,734/30,080,426.07 = 12,138,942/x
3. Step 3: Cross multiply
   21,796,734x = 30,080,426.07 × 12,138,942
4. Step 4: Simplify right side
   21,796,734x = 365,144,547,399,017.94
5. Step 5: Solve for x
   x = 365,144,547,399,017.94/21,796,734
6. Step 6: Final answer
   x = 16,752,259.65