Finding the Fourth Proportional to 81,118.56, 111,943.68 and 45,308.52

Step by Step Solution

1. Step 1: Write the proportion equation
   81,118.56 : 111,943.68 = 45,308.52 : x
2. Step 2: Convert to fraction form
   81,118.56/111,943.68 = 45,308.52/x
3. Step 3: Cross multiply
   81,118.56x = 111,943.68 × 45,308.52
4. Step 4: Simplify right side
   81,118.56x = 5,072,002,464.15
5. Step 5: Solve for x
   x = 5,072,002,464.15/81,118.56
6. Step 6: Final answer
   x = 62,525.80