Finding the Fourth Proportional to 123,852.27, 170,986.98 and 81,533.82

Step by Step Solution

1. Step 1: Write the proportion equation
   123,852.27 : 170,986.98 = 81,533.82 : x
2. Step 2: Convert to fraction form
   123,852.27/170,986.98 = 81,533.82/x
3. Step 3: Cross multiply
   123,852.27x = 170,986.98 × 81,533.82
4. Step 4: Simplify right side
   123,852.27x = 13,941,221,649.66
5. Step 5: Solve for x
   x = 13,941,221,649.66/123,852.27
6. Step 6: Final answer
   x = 112,563.31