Finding the Fourth Proportional to 124,478.72, 171,778.56 and 67,886.72

Step by Step Solution

1. Step 1: Write the proportion equation
   124,478.72 : 171,778.56 = 67,886.72 : x
2. Step 2: Convert to fraction form
   124,478.72/171,778.56 = 67,886.72/x
3. Step 3: Cross multiply
   124,478.72x = 171,778.56 × 67,886.72
4. Step 4: Simplify right side
   124,478.72x = 11,661,483,004.72
5. Step 5: Solve for x
   x = 11,661,483,004.72/124,478.72
6. Step 6: Final answer
   x = 93,682.54