Finding the Fourth Proportional to 65,005.50, 89,707.59 and 35,197.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,005.50 : 89,707.59 = 35,197.50 : x
2. Step 2: Convert to fraction form
   65,005.50/89,707.59 = 35,197.50/x
3. Step 3: Cross multiply
   65,005.50x = 89,707.59 × 35,197.50
4. Step 4: Simplify right side
   65,005.50x = 3,157,482,899.03
5. Step 5: Solve for x
   x = 3,157,482,899.03/65,005.50
6. Step 6: Final answer
   x = 48,572.55