Finding the Fourth Proportional to 30,924.42, 42,697.89 and 19,003.74

Step by Step Solution

1. Step 1: Write the proportion equation
   30,924.42 : 42,697.89 = 19,003.74 : x
2. Step 2: Convert to fraction form
   30,924.42/42,697.89 = 19,003.74/x
3. Step 3: Cross multiply
   30,924.42x = 42,697.89 × 19,003.74
4. Step 4: Simplify right side
   30,924.42x = 811,419,600.11
5. Step 5: Solve for x
   x = 811,419,600.11/30,924.42
6. Step 6: Final answer
   x = 26,238.80