Finding the Fourth Proportional to 22,580.34, 31,152.84 and 13,499.39

Step by Step Solution

1. Step 1: Write the proportion equation
   22,580.34 : 31,152.84 = 13,499.39 : x
2. Step 2: Convert to fraction form
   22,580.34/31,152.84 = 13,499.39/x
3. Step 3: Cross multiply
   22,580.34x = 31,152.84 × 13,499.39
4. Step 4: Simplify right side
   22,580.34x = 420,544,336.77
5. Step 5: Solve for x
   x = 420,544,336.77/22,580.34
6. Step 6: Final answer
   x = 18,624.36