Finding the Fourth Proportional to 998,941,098.72, 1,498,928,309.82 and 724,852,065.09

Step by Step Solution

1. Step 1: Write the proportion equation
   998,941,098.72 : 1,498,928,309.82 = 724,852,065.09 : x
2. Step 2: Convert to fraction form
   998,941,098.72/1,498,928,309.82 = 724,852,065.09/x
3. Step 3: Cross multiply
   998,941,098.72x = 1,498,928,309.82 × 724,852,065.09
4. Step 4: Simplify right side
   998,941,098.72x = 1,086,501,280,794,890,368
5. Step 5: Solve for x
   x = 1,086,501,280,794,890,368/998,941,098.72
6. Step 6: Final answer
   x = 1,087,652,997.95