Finding the Fourth Proportional to 2,609,538,447.99, 3,914,675,300.43 and 838,315,222.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,609,538,447.99 : 3,914,675,300.43 = 838,315,222.05 : x
2. Step 2: Convert to fraction form
   2,609,538,447.99/3,914,675,300.43 = 838,315,222.05/x
3. Step 3: Cross multiply
   2,609,538,447.99x = 3,914,675,300.43 × 838,315,222.05
4. Step 4: Simplify right side
   2,609,538,447.99x = 3,281,731,893,733,625,344
5. Step 5: Solve for x
   x = 3,281,731,893,733,625,344/2,609,538,447.99
6. Step 6: Final answer
   x = 1,257,590,933.85