Finding the Fourth Proportional to 284,105.15, 392,074.52 and 155,050.68

Step by Step Solution

1. Step 1: Write the proportion equation
   284,105.15 : 392,074.52 = 155,050.68 : x
2. Step 2: Convert to fraction form
   284,105.15/392,074.52 = 155,050.68/x
3. Step 3: Cross multiply
   284,105.15x = 392,074.52 × 155,050.68
4. Step 4: Simplify right side
   284,105.15x = 60,791,420,161.42
5. Step 5: Solve for x
   x = 60,791,420,161.42/284,105.15
6. Step 6: Final answer
   x = 213,975.08