Finding the Fourth Proportional to 13,771.72, 19,005 and 7,484.08

Step by Step Solution

1. Step 1: Write the proportion equation
   13,771.72 : 19,005 = 7,484.08 : x
2. Step 2: Convert to fraction form
   13,771.72/19,005 = 7,484.08/x
3. Step 3: Cross multiply
   13,771.72x = 19,005 × 7,484.08
4. Step 4: Simplify right side
   13,771.72x = 142,234,940.40
5. Step 5: Solve for x
   x = 142,234,940.40/13,771.72
6. Step 6: Final answer
   x = 10,328.04