Finding the Fourth Proportional to 20,690.01, 31,016.39 and 7,533.05

Step by Step Solution

1. Step 1: Write the proportion equation
   20,690.01 : 31,016.39 = 7,533.05 : x
2. Step 2: Convert to fraction form
   20,690.01/31,016.39 = 7,533.05/x
3. Step 3: Cross multiply
   20,690.01x = 31,016.39 × 7,533.05
4. Step 4: Simplify right side
   20,690.01x = 233,647,823.94
5. Step 5: Solve for x
   x = 233,647,823.94/20,690.01
6. Step 6: Final answer
   x = 11,292.78