Finding the Fourth Proportional to 564,499.02, 779,002.04 and 306,376.43

Step by Step Solution

1. Step 1: Write the proportion equation
   564,499.02 : 779,002.04 = 306,376.43 : x
2. Step 2: Convert to fraction form
   564,499.02/779,002.04 = 306,376.43/x
3. Step 3: Cross multiply
   564,499.02x = 779,002.04 × 306,376.43
4. Step 4: Simplify right side
   564,499.02x = 238,667,858,551.03
5. Step 5: Solve for x
   x = 238,667,858,551.03/564,499.02
6. Step 6: Final answer
   x = 422,795.88