Finding the Fourth Proportional to 65,189.12, 89,960.76 and 35,381.12

Step by Step Solution

1. Step 1: Write the proportion equation
   65,189.12 : 89,960.76 = 35,381.12 : x
2. Step 2: Convert to fraction form
   65,189.12/89,960.76 = 35,381.12/x
3. Step 3: Cross multiply
   65,189.12x = 89,960.76 × 35,381.12
4. Step 4: Simplify right side
   65,189.12x = 3,182,912,444.85
5. Step 5: Solve for x
   x = 3,182,912,444.85/65,189.12
6. Step 6: Final answer
   x = 48,825.82