Finding the Fourth Proportional to 13,500.44, 18,630.71 and 8,123.01

Step by Step Solution

1. Step 1: Write the proportion equation
   13,500.44 : 18,630.71 = 8,123.01 : x
2. Step 2: Convert to fraction form
   13,500.44/18,630.71 = 8,123.01/x
3. Step 3: Cross multiply
   13,500.44x = 18,630.71 × 8,123.01
4. Step 4: Simplify right side
   13,500.44x = 151,337,443.64
5. Step 5: Solve for x
   x = 151,337,443.64/13,500.44
6. Step 6: Final answer
   x = 11,209.82