Finding the Fourth Proportional to 20,404.19, 30,599.34 and 7,074.08

Step by Step Solution

1. Step 1: Write the proportion equation
   20,404.19 : 30,599.34 = 7,074.08 : x
2. Step 2: Convert to fraction form
   20,404.19/30,599.34 = 7,074.08/x
3. Step 3: Cross multiply
   20,404.19x = 30,599.34 × 7,074.08
4. Step 4: Simplify right side
   20,404.19x = 216,462,114.33
5. Step 5: Solve for x
   x = 216,462,114.33/20,404.19
6. Step 6: Final answer
   x = 10,608.71