Finding the Fourth Proportional to 65,234.50, 90,023.61 and 35,426.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,234.50 : 90,023.61 = 35,426.50 : x
2. Step 2: Convert to fraction form
   65,234.50/90,023.61 = 35,426.50/x
3. Step 3: Cross multiply
   65,234.50x = 90,023.61 × 35,426.50
4. Step 4: Simplify right side
   65,234.50x = 3,189,221,419.67
5. Step 5: Solve for x
   x = 3,189,221,419.67/65,234.50
6. Step 6: Final answer
   x = 48,888.57