Finding the Fourth Proportional to 605,066, 908,013.72 and 211,082

Step by Step Solution

1. Step 1: Write the proportion equation
   605,066 : 908,013.72 = 211,082 : x
2. Step 2: Convert to fraction form
   605,066/908,013.72 = 211,082/x
3. Step 3: Cross multiply
   605,066x = 908,013.72 × 211,082
4. Step 4: Simplify right side
   605,066x = 191,665,352,045.04
5. Step 5: Solve for x
   x = 191,665,352,045.04/605,066
6. Step 6: Final answer
   x = 316,767.68