Finding the Fourth Proportional to 65,435.48, 90,301.39 and 37,141.64

Step by Step Solution

1. Step 1: Write the proportion equation
   65,435.48 : 90,301.39 = 37,141.64 : x
2. Step 2: Convert to fraction form
   65,435.48/90,301.39 = 37,141.64/x
3. Step 3: Cross multiply
   65,435.48x = 90,301.39 × 37,141.64
4. Step 4: Simplify right side
   65,435.48x = 3,353,941,174.52
5. Step 5: Solve for x
   x = 3,353,941,174.52/65,435.48
6. Step 6: Final answer
   x = 51,255.70