Finding the Fourth Proportional to 85,536.72, 118,048.84 and 49,723.60

Step by Step Solution

1. Step 1: Write the proportion equation
   85,536.72 : 118,048.84 = 49,723.60 : x
2. Step 2: Convert to fraction form
   85,536.72/118,048.84 = 49,723.60/x
3. Step 3: Cross multiply
   85,536.72x = 118,048.84 × 49,723.60
4. Step 4: Simplify right side
   85,536.72x = 5,869,813,300.62
5. Step 5: Solve for x
   x = 5,869,813,300.62/85,536.72
6. Step 6: Final answer
   x = 68,623.32