Finding the Fourth Proportional to 558,758.64, 771,084.72 and 304,111.92

Step by Step Solution

1. Step 1: Write the proportion equation
   558,758.64 : 771,084.72 = 304,111.92 : x
2. Step 2: Convert to fraction form
   558,758.64/771,084.72 = 304,111.92/x
3. Step 3: Cross multiply
   558,758.64x = 771,084.72 × 304,111.92
4. Step 4: Simplify right side
   558,758.64x = 234,496,054,681.86
5. Step 5: Solve for x
   x = 234,496,054,681.86/558,758.64
6. Step 6: Final answer
   x = 419,673.25