Finding the Fourth Proportional to 124,162.77, 171,362.69 and 69,721.05

Step by Step Solution

1. Step 1: Write the proportion equation
   124,162.77 : 171,362.69 = 69,721.05 : x
2. Step 2: Convert to fraction form
   124,162.77/171,362.69 = 69,721.05/x
3. Step 3: Cross multiply
   124,162.77x = 171,362.69 × 69,721.05
4. Step 4: Simplify right side
   124,162.77x = 11,947,586,329.02
5. Step 5: Solve for x
   x = 11,947,586,329.02/124,162.77
6. Step 6: Final answer
   x = 96,225.19