Finding the Fourth Proportional to 22,090.85, 30,485.50 and 12,019.37

Step by Step Solution

1. Step 1: Write the proportion equation
   22,090.85 : 30,485.50 = 12,019.37 : x
2. Step 2: Convert to fraction form
   22,090.85/30,485.50 = 12,019.37/x
3. Step 3: Cross multiply
   22,090.85x = 30,485.50 × 12,019.37
4. Step 4: Simplify right side
   22,090.85x = 366,416,389.27
5. Step 5: Solve for x
   x = 366,416,389.27/22,090.85
6. Step 6: Final answer
   x = 16,586.80