Finding the Fourth Proportional to 455,144.16, 682,795.52 and 155,654.72

Step by Step Solution

1. Step 1: Write the proportion equation
   455,144.16 : 682,795.52 = 155,654.72 : x
2. Step 2: Convert to fraction form
   455,144.16/682,795.52 = 155,654.72/x
3. Step 3: Cross multiply
   455,144.16x = 682,795.52 × 155,654.72
4. Step 4: Simplify right side
   455,144.16x = 106,280,345,482.85
5. Step 5: Solve for x
   x = 106,280,345,482.85/455,144.16
6. Step 6: Final answer
   x = 233,509.19