Finding the Fourth Proportional to 282,559.72, 390,034.72 and 187,097.16

Step by Step Solution

1. Step 1: Write the proportion equation
   282,559.72 : 390,034.72 = 187,097.16 : x
2. Step 2: Convert to fraction form
   282,559.72/390,034.72 = 187,097.16/x
3. Step 3: Cross multiply
   282,559.72x = 390,034.72 × 187,097.16
4. Step 4: Simplify right side
   282,559.72x = 72,974,388,413.40
5. Step 5: Solve for x
   x = 72,974,388,413.40/282,559.72
6. Step 6: Final answer
   x = 258,261.82