Finding the Fourth Proportional to 124,443.28, 171,728.04 and 70,734.16

Step by Step Solution

1. Step 1: Write the proportion equation
   124,443.28 : 171,728.04 = 70,734.16 : x
2. Step 2: Convert to fraction form
   124,443.28/171,728.04 = 70,734.16/x
3. Step 3: Cross multiply
   124,443.28x = 171,728.04 × 70,734.16
4. Step 4: Simplify right side
   124,443.28x = 12,147,038,657.85
5. Step 5: Solve for x
   x = 12,147,038,657.85/124,443.28
6. Step 6: Final answer
   x = 97,611.05