Finding the Fourth Proportional to 123,912.32, 171,013.57 and 73,611.32

Step by Step Solution

1. Step 1: Write the proportion equation
   123,912.32 : 171,013.57 = 73,611.32 : x
2. Step 2: Convert to fraction form
   123,912.32/171,013.57 = 73,611.32/x
3. Step 3: Cross multiply
   123,912.32x = 171,013.57 × 73,611.32
4. Step 4: Simplify right side
   123,912.32x = 12,588,534,625.61
5. Step 5: Solve for x
   x = 12,588,534,625.61/123,912.32
6. Step 6: Final answer
   x = 101,592.28