Finding the Fourth Proportional to 65,167.50, 89,931.16 and 35,359.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,167.50 : 89,931.16 = 35,359.50 : x
2. Step 2: Convert to fraction form
   65,167.50/89,931.16 = 35,359.50/x
3. Step 3: Cross multiply
   65,167.50x = 89,931.16 × 35,359.50
4. Step 4: Simplify right side
   65,167.50x = 3,179,920,852.02
5. Step 5: Solve for x
   x = 3,179,920,852.02/65,167.50
6. Step 6: Final answer
   x = 48,796.12