Finding the Fourth Proportional to 22,495.56, 31,031.60 and 13,537.68

Step by Step Solution

1. Step 1: Write the proportion equation
   22,495.56 : 31,031.60 = 13,537.68 : x
2. Step 2: Convert to fraction form
   22,495.56/31,031.60 = 13,537.68/x
3. Step 3: Cross multiply
   22,495.56x = 31,031.60 × 13,537.68
4. Step 4: Simplify right side
   22,495.56x = 420,095,870.69
5. Step 5: Solve for x
   x = 420,095,870.69/22,495.56
6. Step 6: Final answer
   x = 18,674.61