Finding the Fourth Proportional to 123,880.82, 185,821.34 and 30,386.57

Step by Step Solution

1. Step 1: Write the proportion equation
   123,880.82 : 185,821.34 = 30,386.57 : x
2. Step 2: Convert to fraction form
   123,880.82/185,821.34 = 30,386.57/x
3. Step 3: Cross multiply
   123,880.82x = 185,821.34 × 30,386.57
4. Step 4: Simplify right side
   123,880.82x = 5,646,472,074.36
5. Step 5: Solve for x
   x = 5,646,472,074.36/123,880.82
6. Step 6: Final answer
   x = 45,579.88