Finding the Fourth Proportional to 65,522.37, 90,448.92 and 45,133.05

Step by Step Solution

1. Step 1: Write the proportion equation
   65,522.37 : 90,448.92 = 45,133.05 : x
2. Step 2: Convert to fraction form
   65,522.37/90,448.92 = 45,133.05/x
3. Step 3: Cross multiply
   65,522.37x = 90,448.92 × 45,133.05
4. Step 4: Simplify right side
   65,522.37x = 4,082,235,628.81
5. Step 5: Solve for x
   x = 4,082,235,628.81/65,522.37
6. Step 6: Final answer
   x = 62,302.93