Finding the Fourth Proportional to 81,131.22, 111,951.18 and 45,320.04

Step by Step Solution

1. Step 1: Write the proportion equation
   81,131.22 : 111,951.18 = 45,320.04 : x
2. Step 2: Convert to fraction form
   81,131.22/111,951.18 = 45,320.04/x
3. Step 3: Cross multiply
   81,131.22x = 111,951.18 × 45,320.04
4. Step 4: Simplify right side
   81,131.22x = 5,073,631,955.65
5. Step 5: Solve for x
   x = 5,073,631,955.65/81,131.22
6. Step 6: Final answer
   x = 62,536.12