Finding the Fourth Proportional to 65,087.12, 89,820.36 and 35,279.12

Step by Step Solution

1. Step 1: Write the proportion equation
   65,087.12 : 89,820.36 = 35,279.12 : x
2. Step 2: Convert to fraction form
   65,087.12/89,820.36 = 35,279.12/x
3. Step 3: Cross multiply
   65,087.12x = 89,820.36 × 35,279.12
4. Step 4: Simplify right side
   65,087.12x = 3,168,783,258.88
5. Step 5: Solve for x
   x = 3,168,783,258.88/65,087.12
6. Step 6: Final answer
   x = 48,685.26