Finding the Fourth Proportional to 558,150.15, 770,562.78 and 427,080.71

Step by Step Solution

1. Step 1: Write the proportion equation
   558,150.15 : 770,562.78 = 427,080.71 : x
2. Step 2: Convert to fraction form
   558,150.15/770,562.78 = 427,080.71/x
3. Step 3: Cross multiply
   558,150.15x = 770,562.78 × 427,080.71
4. Step 4: Simplify right side
   558,150.15x = 329,092,496,930.71
5. Step 5: Solve for x
   x = 329,092,496,930.71/558,150.15
6. Step 6: Final answer
   x = 589,612.85