Finding the Fourth Proportional to 123,568.56, 170,555.16 and 81,184.56

Step by Step Solution

1. Step 1: Write the proportion equation
   123,568.56 : 170,555.16 = 81,184.56 : x
2. Step 2: Convert to fraction form
   123,568.56/170,555.16 = 81,184.56/x
3. Step 3: Cross multiply
   123,568.56x = 170,555.16 × 81,184.56
4. Step 4: Simplify right side
   123,568.56x = 13,846,445,620.33
5. Step 5: Solve for x
   x = 13,846,445,620.33/123,568.56
6. Step 6: Final answer
   x = 112,054.76