Finding the Fourth Proportional to 123,958.72, 185,893.08 and 67,840.30

Step by Step Solution

1. Step 1: Write the proportion equation
   123,958.72 : 185,893.08 = 67,840.30 : x
2. Step 2: Convert to fraction form
   123,958.72/185,893.08 = 67,840.30/x
3. Step 3: Cross multiply
   123,958.72x = 185,893.08 × 67,840.30
4. Step 4: Simplify right side
   123,958.72x = 12,611,042,315.12
5. Step 5: Solve for x
   x = 12,611,042,315.12/123,958.72
6. Step 6: Final answer
   x = 101,735.82