Finding the Fourth Proportional to 123,922.31, 171,012.47 and 67,333.68

Step by Step Solution

1. Step 1: Write the proportion equation
   123,922.31 : 171,012.47 = 67,333.68 : x
2. Step 2: Convert to fraction form
   123,922.31/171,012.47 = 67,333.68/x
3. Step 3: Cross multiply
   123,922.31x = 171,012.47 × 67,333.68
4. Step 4: Simplify right side
   123,922.31x = 11,514,898,594.32
5. Step 5: Solve for x
   x = 11,514,898,594.32/123,922.31
6. Step 6: Final answer
   x = 92,920.31