Finding the Fourth Proportional to 123,920.96, 171,012.48 and 67,333.28

Step by Step Solution

1. Step 1: Write the proportion equation
   123,920.96 : 171,012.48 = 67,333.28 : x
2. Step 2: Convert to fraction form
   123,920.96/171,012.48 = 67,333.28/x
3. Step 3: Cross multiply
   123,920.96x = 171,012.48 × 67,333.28
4. Step 4: Simplify right side
   123,920.96x = 11,514,831,199.33
5. Step 5: Solve for x
   x = 11,514,831,199.33/123,920.96
6. Step 6: Final answer
   x = 92,920.77