Finding the Fourth Proportional to 65,007.50, 89,710.35 and 35,199.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,007.50 : 89,710.35 = 35,199.50 : x
2. Step 2: Convert to fraction form
   65,007.50/89,710.35 = 35,199.50/x
3. Step 3: Cross multiply
   65,007.50x = 89,710.35 × 35,199.50
4. Step 4: Simplify right side
   65,007.50x = 3,157,759,464.83
5. Step 5: Solve for x
   x = 3,157,759,464.83/65,007.50
6. Step 6: Final answer
   x = 48,575.31