Finding the Fourth Proportional to 547,890.86, 756,105.52 and 306,174.00

Step by Step Solution

1. Step 1: Write the proportion equation
   547,890.86 : 756,105.52 = 306,174.00 : x
2. Step 2: Convert to fraction form
   547,890.86/756,105.52 = 306,174.00/x
3. Step 3: Cross multiply
   547,890.86x = 756,105.52 × 306,174.00
4. Step 4: Simplify right side
   547,890.86x = 231,499,847,699.95
5. Step 5: Solve for x
   x = 231,499,847,699.95/547,890.86
6. Step 6: Final answer
   x = 422,529.13