Finding the Fourth Proportional to 123,886.48, 171,034.24 and 81,568

Step by Step Solution

1. Step 1: Write the proportion equation
   123,886.48 : 171,034.24 = 81,568 : x
2. Step 2: Convert to fraction form
   123,886.48/171,034.24 = 81,568/x
3. Step 3: Cross multiply
   123,886.48x = 171,034.24 × 81,568
4. Step 4: Simplify right side
   123,886.48x = 13,950,920,888.32
5. Step 5: Solve for x
   x = 13,950,920,888.32/123,886.48
6. Step 6: Final answer
   x = 112,610.52