Finding the Fourth Proportional to 2,957,645,449.76, 4,437,297,580.72 and 1,188,258,654.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,957,645,449.76 : 4,437,297,580.72 = 1,188,258,654.74 : x
2. Step 2: Convert to fraction form
   2,957,645,449.76/4,437,297,580.72 = 1,188,258,654.74/x
3. Step 3: Cross multiply
   2,957,645,449.76x = 4,437,297,580.72 × 1,188,258,654.74
4. Step 4: Simplify right side
   2,957,645,449.76x = 5,272,657,253,947,404,288
5. Step 5: Solve for x
   x = 5,272,657,253,947,404,288/2,957,645,449.76
6. Step 6: Final answer
   x = 1,782,721,202.90