Finding the Fourth Proportional to 38,007.42, 52,450.32 and 21,240.42

Step by Step Solution

1. Step 1: Write the proportion equation
   38,007.42 : 52,450.32 = 21,240.42 : x
2. Step 2: Convert to fraction form
   38,007.42/52,450.32 = 21,240.42/x
3. Step 3: Cross multiply
   38,007.42x = 52,450.32 × 21,240.42
4. Step 4: Simplify right side
   38,007.42x = 1,114,066,825.93
5. Step 5: Solve for x
   x = 1,114,066,825.93/38,007.42
6. Step 6: Final answer
   x = 29,311.82