Finding the Fourth Proportional to 124,429.36, 171,692.55 and 69,981.37

Step by Step Solution

1. Step 1: Write the proportion equation
   124,429.36 : 171,692.55 = 69,981.37 : x
2. Step 2: Convert to fraction form
   124,429.36/171,692.55 = 69,981.37/x
3. Step 3: Cross multiply
   124,429.36x = 171,692.55 × 69,981.37
4. Step 4: Simplify right side
   124,429.36x = 12,015,279,867.79
5. Step 5: Solve for x
   x = 12,015,279,867.79/124,429.36
6. Step 6: Final answer
   x = 96,563.06