Finding the Fourth Proportional to 42,597.38, 63,902.24 and 13,011.42

Step by Step Solution

1. Step 1: Write the proportion equation
   42,597.38 : 63,902.24 = 13,011.42 : x
2. Step 2: Convert to fraction form
   42,597.38/63,902.24 = 13,011.42/x
3. Step 3: Cross multiply
   42,597.38x = 63,902.24 × 13,011.42
4. Step 4: Simplify right side
   42,597.38x = 831,458,883.58
5. Step 5: Solve for x
   x = 831,458,883.58/42,597.38
6. Step 6: Final answer
   x = 19,519.01