Finding the Fourth Proportional to 282,413.50, 389,733.15 and 155,090.00

Step by Step Solution

1. Step 1: Write the proportion equation
   282,413.50 : 389,733.15 = 155,090.00 : x
2. Step 2: Convert to fraction form
   282,413.50/389,733.15 = 155,090.00/x
3. Step 3: Cross multiply
   282,413.50x = 389,733.15 × 155,090.00
4. Step 4: Simplify right side
   282,413.50x = 60,443,715,789.42
5. Step 5: Solve for x
   x = 60,443,715,789.42/282,413.50
6. Step 6: Final answer
   x = 214,025.59