Finding the Fourth Proportional to 123,678.81, 185,518.35 and 30,184.56

Step by Step Solution

1. Step 1: Write the proportion equation
   123,678.81 : 185,518.35 = 30,184.56 : x
2. Step 2: Convert to fraction form
   123,678.81/185,518.35 = 30,184.56/x
3. Step 3: Cross multiply
   123,678.81x = 185,518.35 × 30,184.56
4. Step 4: Simplify right side
   123,678.81x = 5,599,789,766.68
5. Step 5: Solve for x
   x = 5,599,789,766.68/123,678.81
6. Step 6: Final answer
   x = 45,276.87