Finding the Fourth Proportional to 80,973.42, 111,743.48 and 45,165.75

Step by Step Solution

1. Step 1: Write the proportion equation
   80,973.42 : 111,743.48 = 45,165.75 : x
2. Step 2: Convert to fraction form
   80,973.42/111,743.48 = 45,165.75/x
3. Step 3: Cross multiply
   80,973.42x = 111,743.48 × 45,165.75
4. Step 4: Simplify right side
   80,973.42x = 5,046,978,081.81
5. Step 5: Solve for x
   x = 5,046,978,081.81/80,973.42
6. Step 6: Final answer
   x = 62,328.82