Finding the Fourth Proportional to 81,722.42, 112,808.76 and 51,501.82

Step by Step Solution

1. Step 1: Write the proportion equation
   81,722.42 : 112,808.76 = 51,501.82 : x
2. Step 2: Convert to fraction form
   81,722.42/112,808.76 = 51,501.82/x
3. Step 3: Cross multiply
   81,722.42x = 112,808.76 × 51,501.82
4. Step 4: Simplify right side
   81,722.42x = 5,809,856,451.94
5. Step 5: Solve for x
   x = 5,809,856,451.94/81,722.42
6. Step 6: Final answer
   x = 71,092.56