Finding the Fourth Proportional to 1,989,776,028.01, 2,983,091,407.39 and 993,285,633.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,989,776,028.01 : 2,983,091,407.39 = 993,285,633.90 : x
2. Step 2: Convert to fraction form
   1,989,776,028.01/2,983,091,407.39 = 993,285,633.90/x
3. Step 3: Cross multiply
   1,989,776,028.01x = 2,983,091,407.39 × 993,285,633.90
4. Step 4: Simplify right side
   1,989,776,028.01x = 2,963,061,839,571,019,264
5. Step 5: Solve for x
   x = 2,963,061,839,571,019,264/1,989,776,028.01
6. Step 6: Final answer
   x = 1,489,143,399.99