Finding the Fourth Proportional to 287,114.82, 430,736.52 and 87,450.83

Step by Step Solution

1. Step 1: Write the proportion equation
   287,114.82 : 430,736.52 = 87,450.83 : x
2. Step 2: Convert to fraction form
   287,114.82/430,736.52 = 87,450.83/x
3. Step 3: Cross multiply
   287,114.82x = 430,736.52 × 87,450.83
4. Step 4: Simplify right side
   287,114.82x = 37,668,266,185.31
5. Step 5: Solve for x
   x = 37,668,266,185.31/287,114.82
6. Step 6: Final answer
   x = 131,195.83