Finding the Fourth Proportional to 123,858.35, 170,921.72 and 67,268.51

Step by Step Solution

1. Step 1: Write the proportion equation
   123,858.35 : 170,921.72 = 67,268.51 : x
2. Step 2: Convert to fraction form
   123,858.35/170,921.72 = 67,268.51/x
3. Step 3: Cross multiply
   123,858.35x = 170,921.72 × 67,268.51
4. Step 4: Simplify right side
   123,858.35x = 11,497,649,094.69
5. Step 5: Solve for x
   x = 11,497,649,094.69/123,858.35
6. Step 6: Final answer
   x = 92,829.02