Finding the Fourth Proportional to 282,388.56, 389,700.98 and 155,076

Step by Step Solution

1. Step 1: Write the proportion equation
   282,388.56 : 389,700.98 = 155,076 : x
2. Step 2: Convert to fraction form
   282,388.56/389,700.98 = 155,076/x
3. Step 3: Cross multiply
   282,388.56x = 389,700.98 × 155,076
4. Step 4: Simplify right side
   282,388.56x = 60,433,269,174.48
5. Step 5: Solve for x
   x = 60,433,269,174.48/282,388.56
6. Step 6: Final answer
   x = 214,007.50