Finding the Fourth Proportional to 455,994.72, 629,259.84 and 254,790.72

Step by Step Solution

1. Step 1: Write the proportion equation
   455,994.72 : 629,259.84 = 254,790.72 : x
2. Step 2: Convert to fraction form
   455,994.72/629,259.84 = 254,790.72/x
3. Step 3: Cross multiply
   455,994.72x = 629,259.84 × 254,790.72
4. Step 4: Simplify right side
   455,994.72x = 160,329,567,700.69
5. Step 5: Solve for x
   x = 160,329,567,700.69/455,994.72
6. Step 6: Final answer
   x = 351,604.00