Finding the Fourth Proportional to 284,074.72, 426,274.89 and 115,563.94

Step by Step Solution

1. Step 1: Write the proportion equation
   284,074.72 : 426,274.89 = 115,563.94 : x
2. Step 2: Convert to fraction form
   284,074.72/426,274.89 = 115,563.94/x
3. Step 3: Cross multiply
   284,074.72x = 426,274.89 × 115,563.94
4. Step 4: Simplify right side
   284,074.72x = 49,262,005,811.47
5. Step 5: Solve for x
   x = 49,262,005,811.47/284,074.72
6. Step 6: Final answer
   x = 173,412.14