Finding the Fourth Proportional to 248,911.50, 373,404.69 and 80,375.34

Step by Step Solution

1. Step 1: Write the proportion equation
   248,911.50 : 373,404.69 = 80,375.34 : x
2. Step 2: Convert to fraction form
   248,911.50/373,404.69 = 80,375.34/x
3. Step 3: Cross multiply
   248,911.50x = 373,404.69 × 80,375.34
4. Step 4: Simplify right side
   248,911.50x = 30,012,528,916.34
5. Step 5: Solve for x
   x = 30,012,528,916.34/248,911.50
6. Step 6: Final answer
   x = 120,575.10