Finding the Fourth Proportional to 124,443.52, 171,728.32 and 67,856

Step by Step Solution

1. Step 1: Write the proportion equation
   124,443.52 : 171,728.32 = 67,856 : x
2. Step 2: Convert to fraction form
   124,443.52/171,728.32 = 67,856/x
3. Step 3: Cross multiply
   124,443.52x = 171,728.32 × 67,856
4. Step 4: Simplify right side
   124,443.52x = 11,652,796,881.92
5. Step 5: Solve for x
   x = 11,652,796,881.92/124,443.52
6. Step 6: Final answer
   x = 93,639.24