Finding the Fourth Proportional to 2,109,142,869.80, 3,161,499,669.92 and 709,641,305.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109,142,869.80 : 3,161,499,669.92 = 709,641,305.91 : x
2. Step 2: Convert to fraction form
   2,109,142,869.80/3,161,499,669.92 = 709,641,305.91/x
3. Step 3: Cross multiply
   2,109,142,869.80x = 3,161,499,669.92 × 709,641,305.91
4. Step 4: Simplify right side
   2,109,142,869.80x = 2,243,530,754,397,836,800
5. Step 5: Solve for x
   x = 2,243,530,754,397,836,800/2,109,142,869.80
6. Step 6: Final answer
   x = 1,063,716,823.80