Finding the Fourth Proportional to 124,156.35, 171,323.90 and 69,696.05

Step by Step Solution

1. Step 1: Write the proportion equation
   124,156.35 : 171,323.90 = 69,696.05 : x
2. Step 2: Convert to fraction form
   124,156.35/171,323.90 = 69,696.05/x
3. Step 3: Cross multiply
   124,156.35x = 171,323.90 × 69,696.05
4. Step 4: Simplify right side
   124,156.35x = 11,940,597,895.50
5. Step 5: Solve for x
   x = 11,940,597,895.50/124,156.35
6. Step 6: Final answer
   x = 96,173.88