Finding the Fourth Proportional to 65,315.18, 90,132.39 and 37,020.26

Step by Step Solution

1. Step 1: Write the proportion equation
   65,315.18 : 90,132.39 = 37,020.26 : x
2. Step 2: Convert to fraction form
   65,315.18/90,132.39 = 37,020.26/x
3. Step 3: Cross multiply
   65,315.18x = 90,132.39 × 37,020.26
4. Step 4: Simplify right side
   65,315.18x = 3,336,724,061.56
5. Step 5: Solve for x
   x = 3,336,724,061.56/65,315.18
6. Step 6: Final answer
   x = 51,086.51