Finding the Fourth Proportional to 81,148.72, 111,982.94 and 45,338.73

Step by Step Solution

1. Step 1: Write the proportion equation
   81,148.72 : 111,982.94 = 45,338.73 : x
2. Step 2: Convert to fraction form
   81,148.72/111,982.94 = 45,338.73/x
3. Step 3: Cross multiply
   81,148.72x = 111,982.94 × 45,338.73
4. Step 4: Simplify right side
   81,148.72x = 5,077,164,547.10
5. Step 5: Solve for x
   x = 5,077,164,547.10/81,148.72
6. Step 6: Final answer
   x = 62,566.17