Finding the Fourth Proportional to 65,406.50, 90,260.98 and 35,598.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,406.50 : 90,260.98 = 35,598.50 : x
2. Step 2: Convert to fraction form
   65,406.50/90,260.98 = 35,598.50/x
3. Step 3: Cross multiply
   65,406.50x = 90,260.98 × 35,598.50
4. Step 4: Simplify right side
   65,406.50x = 3,213,155,496.53
5. Step 5: Solve for x
   x = 3,213,155,496.53/65,406.50
6. Step 6: Final answer
   x = 49,125.94