Finding the Fourth Proportional to 1,499,588,248.62, 2,249,530,906.55 and 554,434,152.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,588,248.62 : 2,249,530,906.55 = 554,434,152.09 : x
2. Step 2: Convert to fraction form
   1,499,588,248.62/2,249,530,906.55 = 554,434,152.09/x
3. Step 3: Cross multiply
   1,499,588,248.62x = 2,249,530,906.55 × 554,434,152.09
4. Step 4: Simplify right side
   1,499,588,248.62x = 1,247,216,760,770,526,208
5. Step 5: Solve for x
   x = 1,247,216,760,770,526,208/1,499,588,248.62
6. Step 6: Final answer
   x = 831,706,144.62