Finding the Fourth Proportional to 2,171,431,837.62, 3,255,660,789.86 and 1,105,791,916.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171,431,837.62 : 3,255,660,789.86 = 1,105,791,916.50 : x
2. Step 2: Convert to fraction form
   2,171,431,837.62/3,255,660,789.86 = 1,105,791,916.50/x
3. Step 3: Cross multiply
   2,171,431,837.62x = 3,255,660,789.86 × 1,105,791,916.50
4. Step 4: Simplify right side
   2,171,431,837.62x = 3,600,083,384,293,193,216
5. Step 5: Solve for x
   x = 3,600,083,384,293,193,216/2,171,431,837.62
6. Step 6: Final answer
   x = 1,657,930,643.70