Finding the Fourth Proportional to 522,082,875,093.69, 720,474,402,275.59 and 290,591,426,438.71

Step by Step Solution

1. Step 1: Write the proportion equation
   522,082,875,093.69 : 720,474,402,275.59 = 290,591,426,438.71 : x
2. Step 2: Convert to fraction form
   522,082,875,093.69/720,474,402,275.59 = 290,591,426,438.71/x
3. Step 3: Cross multiply
   522,082,875,093.69x = 720,474,402,275.59 × 290,591,426,438.71
4. Step 4: Simplify right side
   522,082,875,093.69x = 209,363,684,269,840,685,596,672
5. Step 5: Solve for x
   x = 209,363,684,269,840,685,596,672/522,082,875,093.69
6. Step 6: Final answer
   x = 401,016,187,769.56