Finding the Fourth Proportional to 13,003.68, 19,506.06 and 4,238.67

Step by Step Solution

1. Step 1: Write the proportion equation
   13,003.68 : 19,506.06 = 4,238.67 : x
2. Step 2: Convert to fraction form
   13,003.68/19,506.06 = 4,238.67/x
3. Step 3: Cross multiply
   13,003.68x = 19,506.06 × 4,238.67
4. Step 4: Simplify right side
   13,003.68x = 82,679,751.34
5. Step 5: Solve for x
   x = 82,679,751.34/13,003.68
6. Step 6: Final answer
   x = 6,358.18