Finding the Fourth Proportional to 81,087.42, 111,899.58 and 45,278.04

Step by Step Solution

1. Step 1: Write the proportion equation
   81,087.42 : 111,899.58 = 45,278.04 : x
2. Step 2: Convert to fraction form
   81,087.42/111,899.58 = 45,278.04/x
3. Step 3: Cross multiply
   81,087.42x = 111,899.58 × 45,278.04
4. Step 4: Simplify right side
   81,087.42x = 5,066,593,659.22
5. Step 5: Solve for x
   x = 5,066,593,659.22/81,087.42
6. Step 6: Final answer
   x = 62,483.10