Finding the Fourth Proportional to 124,085.36, 171,238.20 and 67,496.72

Step by Step Solution

1. Step 1: Write the proportion equation
   124,085.36 : 171,238.20 = 67,496.72 : x
2. Step 2: Convert to fraction form
   124,085.36/171,238.20 = 67,496.72/x
3. Step 3: Cross multiply
   124,085.36x = 171,238.20 × 67,496.72
4. Step 4: Simplify right side
   124,085.36x = 11,558,016,838.70
5. Step 5: Solve for x
   x = 11,558,016,838.70/124,085.36
6. Step 6: Final answer
   x = 93,145.69