Finding the Fourth Proportional to 85,738.61, 118,320.47 and 49,439.42

Step by Step Solution

1. Step 1: Write the proportion equation
   85,738.61 : 118,320.47 = 49,439.42 : x
2. Step 2: Convert to fraction form
   85,738.61/118,320.47 = 49,439.42/x
3. Step 3: Cross multiply
   85,738.61x = 118,320.47 × 49,439.42
4. Step 4: Simplify right side
   85,738.61x = 5,849,695,287.33
5. Step 5: Solve for x
   x = 5,849,695,287.33/85,738.61
6. Step 6: Final answer
   x = 68,227.08