Finding the Fourth Proportional to 123,970.48, 171,079.50 and 67,381.72

Step by Step Solution

1. Step 1: Write the proportion equation
   123,970.48 : 171,079.50 = 67,381.72 : x
2. Step 2: Convert to fraction form
   123,970.48/171,079.50 = 67,381.72/x
3. Step 3: Cross multiply
   123,970.48x = 171,079.50 × 67,381.72
4. Step 4: Simplify right side
   123,970.48x = 11,527,630,966.74
5. Step 5: Solve for x
   x = 11,527,630,966.74/123,970.48
6. Step 6: Final answer
   x = 92,986.90