Finding the Fourth Proportional to 20,013.69, 30,015.98 and 7,535.03

Step by Step Solution

1. Step 1: Write the proportion equation
   20,013.69 : 30,015.98 = 7,535.03 : x
2. Step 2: Convert to fraction form
   20,013.69/30,015.98 = 7,535.03/x
3. Step 3: Cross multiply
   20,013.69x = 30,015.98 × 7,535.03
4. Step 4: Simplify right side
   20,013.69x = 226,171,272.10
5. Step 5: Solve for x
   x = 226,171,272.10/20,013.69
6. Step 6: Final answer
   x = 11,300.83