Finding the Fourth Proportional to 65,318.48, 90,139.08 and 35,510.48

Step by Step Solution

1. Step 1: Write the proportion equation
   65,318.48 : 90,139.08 = 35,510.48 : x
2. Step 2: Convert to fraction form
   65,318.48/90,139.08 = 35,510.48/x
3. Step 3: Cross multiply
   65,318.48x = 90,139.08 × 35,510.48
4. Step 4: Simplify right side
   65,318.48x = 3,200,881,997.56
5. Step 5: Solve for x
   x = 3,200,881,997.56/65,318.48
6. Step 6: Final answer
   x = 49,004.23