Finding the Fourth Proportional to 64,479.35, 88,987.89 and 36,185.15

Step by Step Solution

1. Step 1: Write the proportion equation
   64,479.35 : 88,987.89 = 36,185.15 : x
2. Step 2: Convert to fraction form
   64,479.35/88,987.89 = 36,185.15/x
3. Step 3: Cross multiply
   64,479.35x = 88,987.89 × 36,185.15
4. Step 4: Simplify right side
   64,479.35x = 3,220,040,147.83
5. Step 5: Solve for x
   x = 3,220,040,147.83/64,479.35
6. Step 6: Final answer
   x = 49,939.09