Finding the Fourth Proportional to 420,446,705.10, 576,002,363.82 and 404,727,106.38

Step by Step Solution

1. Step 1: Write the proportion equation
   420,446,705.10 : 576,002,363.82 = 404,727,106.38 : x
2. Step 2: Convert to fraction form
   420,446,705.10/576,002,363.82 = 404,727,106.38/x
3. Step 3: Cross multiply
   420,446,705.10x = 576,002,363.82 × 404,727,106.38
4. Step 4: Simplify right side
   420,446,705.10x = 233,123,769,976,908,608
5. Step 5: Solve for x
   x = 233,123,769,976,908,608/420,446,705.10
6. Step 6: Final answer
   x = 554,466,873.33