Finding the Fourth Proportional to 1,901,833,797.72, 2,624,533,728.35 and 1,055,061,142.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,901,833,797.72 : 2,624,533,728.35 = 1,055,061,142.05 : x
2. Step 2: Convert to fraction form
   1,901,833,797.72/2,624,533,728.35 = 1,055,061,142.05/x
3. Step 3: Cross multiply
   1,901,833,797.72x = 2,624,533,728.35 × 1,055,061,142.05
4. Step 4: Simplify right side
   1,901,833,797.72x = 2,769,043,552,776,419,840
5. Step 5: Solve for x
   x = 2,769,043,552,776,419,840/1,901,833,797.72
6. Step 6: Final answer
   x = 1,455,986,088.85