Finding the Fourth Proportional to 65,395.50, 90,245.79 and 35,587.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,395.50 : 90,245.79 = 35,587.50 : x
2. Step 2: Convert to fraction form
   65,395.50/90,245.79 = 35,587.50/x
3. Step 3: Cross multiply
   65,395.50x = 90,245.79 × 35,587.50
4. Step 4: Simplify right side
   65,395.50x = 3,211,622,051.63
5. Step 5: Solve for x
   x = 3,211,622,051.63/65,395.50
6. Step 6: Final answer
   x = 49,110.75