Finding the Fourth Proportional to 1,153,039,665.06, 1,591,196,272.26 and 624,404,562.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,153,039,665.06 : 1,591,196,272.26 = 624,404,562.83 : x
2. Step 2: Convert to fraction form
   1,153,039,665.06/1,591,196,272.26 = 624,404,562.83/x
3. Step 3: Cross multiply
   1,153,039,665.06x = 1,591,196,272.26 × 624,404,562.83
4. Step 4: Simplify right side
   1,153,039,665.06x = 993,550,212,747,714,048
5. Step 5: Solve for x
   x = 993,550,212,747,714,048/1,153,039,665.06
6. Step 6: Final answer
   x = 861,679,127.66