Finding the Fourth Proportional to 2,153,790,561.02, 2,972,230,979.91 and 1,163,715,978.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153,790,561.02 : 2,972,230,979.91 = 1,163,715,978.02 : x
2. Step 2: Convert to fraction form
   2,153,790,561.02/2,972,230,979.91 = 1,163,715,978.02/x
3. Step 3: Cross multiply
   2,153,790,561.02x = 2,972,230,979.91 × 1,163,715,978.02
4. Step 4: Simplify right side
   2,153,790,561.02x = 3,458,832,681,687,308,288
5. Step 5: Solve for x
   x = 3,458,832,681,687,308,288/2,153,790,561.02
6. Step 6: Final answer
   x = 1,605,928,052.75