Finding the Fourth Proportional to 81,377.72, 112,307.98 and 45,571.06

Step by Step Solution

1. Step 1: Write the proportion equation
   81,377.72 : 112,307.98 = 45,571.06 : x
2. Step 2: Convert to fraction form
   81,377.72/112,307.98 = 45,571.06/x
3. Step 3: Cross multiply
   81,377.72x = 112,307.98 × 45,571.06
4. Step 4: Simplify right side
   81,377.72x = 5,117,993,695.06
5. Step 5: Solve for x
   x = 5,117,993,695.06/81,377.72
6. Step 6: Final answer
   x = 62,891.83