Finding the Fourth Proportional to 30,815.39, 42,551.15 and 19,504.83

Step by Step Solution

1. Step 1: Write the proportion equation
   30,815.39 : 42,551.15 = 19,504.83 : x
2. Step 2: Convert to fraction form
   30,815.39/42,551.15 = 19,504.83/x
3. Step 3: Cross multiply
   30,815.39x = 42,551.15 × 19,504.83
4. Step 4: Simplify right side
   30,815.39x = 829,952,849.53
5. Step 5: Solve for x
   x = 829,952,849.53/30,815.39
6. Step 6: Final answer
   x = 26,933.07