Finding the Fourth Proportional to 30,791.37, 42,477.03 and 19,455.42

Step by Step Solution

1. Step 1: Write the proportion equation
   30,791.37 : 42,477.03 = 19,455.42 : x
2. Step 2: Convert to fraction form
   30,791.37/42,477.03 = 19,455.42/x
3. Step 3: Cross multiply
   30,791.37x = 42,477.03 × 19,455.42
4. Step 4: Simplify right side
   30,791.37x = 826,408,459.00
5. Step 5: Solve for x
   x = 826,408,459.00/30,791.37
6. Step 6: Final answer
   x = 26,838.96