Finding the Fourth Proportional to 13,071.89, 19,608.29 and 4,187.49

Step by Step Solution

1. Step 1: Write the proportion equation
   13,071.89 : 19,608.29 = 4,187.49 : x
2. Step 2: Convert to fraction form
   13,071.89/19,608.29 = 4,187.49/x
3. Step 3: Cross multiply
   13,071.89x = 19,608.29 × 4,187.49
4. Step 4: Simplify right side
   13,071.89x = 82,109,399.31
5. Step 5: Solve for x
   x = 82,109,399.31/13,071.89
6. Step 6: Final answer
   x = 6,281.37