Finding the Fourth Proportional to 30,078.50, 41,494.55 and 19,471.55

Step by Step Solution

1. Step 1: Write the proportion equation
   30,078.50 : 41,494.55 = 19,471.55 : x
2. Step 2: Convert to fraction form
   30,078.50/41,494.55 = 19,471.55/x
3. Step 3: Cross multiply
   30,078.50x = 41,494.55 × 19,471.55
4. Step 4: Simplify right side
   30,078.50x = 807,962,900.22
5. Step 5: Solve for x
   x = 807,962,900.22/30,078.50
6. Step 6: Final answer
   x = 26,861.81