Finding the Fourth Proportional to 87,036.72, 120,121.56 and 49,323.12

Step by Step Solution

1. Step 1: Write the proportion equation
   87,036.72 : 120,121.56 = 49,323.12 : x
2. Step 2: Convert to fraction form
   87,036.72/120,121.56 = 49,323.12/x
3. Step 3: Cross multiply
   87,036.72x = 120,121.56 × 49,323.12
4. Step 4: Simplify right side
   87,036.72x = 5,924,770,118.47
5. Step 5: Solve for x
   x = 5,924,770,118.47/87,036.72
6. Step 6: Final answer
   x = 68,072.07