Finding the Fourth Proportional to 1,140,722,435.86, 1,708,136,776.82 and 787,287,308.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,140,722,435.86 : 1,708,136,776.82 = 787,287,308.09 : x
2. Step 2: Convert to fraction form
   1,140,722,435.86/1,708,136,776.82 = 787,287,308.09/x
3. Step 3: Cross multiply
   1,140,722,435.86x = 1,708,136,776.82 × 787,287,308.09
4. Step 4: Simplify right side
   1,140,722,435.86x = 1,344,794,404,865,574,400
5. Step 5: Solve for x
   x = 1,344,794,404,865,574,400/1,140,722,435.86
6. Step 6: Final answer
   x = 1,178,897,129.22