Finding the Fourth Proportional to 124,162.27, 171,361.99 and 69,720.55

Step by Step Solution

1. Step 1: Write the proportion equation
   124,162.27 : 171,361.99 = 69,720.55 : x
2. Step 2: Convert to fraction form
   124,162.27/171,361.99 = 69,720.55/x
3. Step 3: Cross multiply
   124,162.27x = 171,361.99 × 69,720.55
4. Step 4: Simplify right side
   124,162.27x = 11,947,452,191.89
5. Step 5: Solve for x
   x = 11,947,452,191.89/124,162.27
6. Step 6: Final answer
   x = 96,224.50