Finding the Fourth Proportional to 20,333.10, 30,503.93 and 7,007.31

Step by Step Solution

1. Step 1: Write the proportion equation
   20,333.10 : 30,503.93 = 7,007.31 : x
2. Step 2: Convert to fraction form
   20,333.10/30,503.93 = 7,007.31/x
3. Step 3: Cross multiply
   20,333.10x = 30,503.93 × 7,007.31
4. Step 4: Simplify right side
   20,333.10x = 213,750,458.69
5. Step 5: Solve for x
   x = 213,750,458.69/20,333.10
6. Step 6: Final answer
   x = 10,512.44