Finding the Fourth Proportional to 30,796.98, 42,500.02 and 19,471.58

Step by Step Solution

1. Step 1: Write the proportion equation
   30,796.98 : 42,500.02 = 19,471.58 : x
2. Step 2: Convert to fraction form
   30,796.98/42,500.02 = 19,471.58/x
3. Step 3: Cross multiply
   30,796.98x = 42,500.02 × 19,471.58
4. Step 4: Simplify right side
   30,796.98x = 827,542,539.43
5. Step 5: Solve for x
   x = 827,542,539.43/30,796.98
6. Step 6: Final answer
   x = 26,870.90