Finding the Fourth Proportional to 19,892,171,734.24, 29,823,547,662.71 and 12,029,836,116.69

Step by Step Solution

1. Step 1: Write the proportion equation
   19,892,171,734.24 : 29,823,547,662.71 = 12,029,836,116.69 : x
2. Step 2: Convert to fraction form
   19,892,171,734.24/29,823,547,662.71 = 12,029,836,116.69/x
3. Step 3: Cross multiply
   19,892,171,734.24x = 29,823,547,662.71 × 12,029,836,116.69
4. Step 4: Simplify right side
   19,892,171,734.24x = 358,772,390,800,694,378,496
5. Step 5: Solve for x
   x = 358,772,390,800,694,378,496/19,892,171,734.24
6. Step 6: Final answer
   x = 18,035,858,306.17