Finding the Fourth Proportional to 124,399.37, 171,662.55 and 69,959.68

Step by Step Solution

1. Step 1: Write the proportion equation
   124,399.37 : 171,662.55 = 69,959.68 : x
2. Step 2: Convert to fraction form
   124,399.37/171,662.55 = 69,959.68/x
3. Step 3: Cross multiply
   124,399.37x = 171,662.55 × 69,959.68
4. Step 4: Simplify right side
   124,399.37x = 12,009,457,065.98
5. Step 5: Solve for x
   x = 12,009,457,065.98/124,399.37
6. Step 6: Final answer
   x = 96,539.53