Finding the Fourth Proportional to 2,069,980,362.72, 2,856,823,395.84 and 1,178,123,940

Step by Step Solution

1. Step 1: Write the proportion equation
   2,069,980,362.72 : 2,856,823,395.84 = 1,178,123,940 : x
2. Step 2: Convert to fraction form
   2,069,980,362.72/2,856,823,395.84 = 1,178,123,940/x
3. Step 3: Cross multiply
   2,069,980,362.72x = 2,856,823,395.84 × 1,178,123,940
4. Step 4: Simplify right side
   2,069,980,362.72x = 3,365,692,034,991,200,768
5. Step 5: Solve for x
   x = 3,365,692,034,991,200,768/2,069,980,362.72
6. Step 6: Final answer
   x = 1,625,953,605.94