Finding the Fourth Proportional to 123,946.29, 185,931.72 and 39,685.28

Step by Step Solution

1. Step 1: Write the proportion equation
   123,946.29 : 185,931.72 = 39,685.28 : x
2. Step 2: Convert to fraction form
   123,946.29/185,931.72 = 39,685.28/x
3. Step 3: Cross multiply
   123,946.29x = 185,931.72 × 39,685.28
4. Step 4: Simplify right side
   123,946.29x = 7,378,751,439.42
5. Step 5: Solve for x
   x = 7,378,751,439.42/123,946.29
6. Step 6: Final answer
   x = 59,531.85