Finding the Fourth Proportional to 2,412,820,311.48, 3,619,266,569.73 and 918,934,359.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,412,820,311.48 : 3,619,266,569.73 = 918,934,359.30 : x
2. Step 2: Convert to fraction form
   2,412,820,311.48/3,619,266,569.73 = 918,934,359.30/x
3. Step 3: Cross multiply
   2,412,820,311.48x = 3,619,266,569.73 × 918,934,359.30
4. Step 4: Simplify right side
   2,412,820,311.48x = 3,325,868,406,390,746,112
5. Step 5: Solve for x
   x = 3,325,868,406,390,746,112/2,412,820,311.48
6. Step 6: Final answer
   x = 1,378,415,288.77