Finding the Fourth Proportional to 13,016.57, 19,518.98 and 4,129.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,016.57 : 19,518.98 = 4,129.34 : x
2. Step 2: Convert to fraction form
   13,016.57/19,518.98 = 4,129.34/x
3. Step 3: Cross multiply
   13,016.57x = 19,518.98 × 4,129.34
4. Step 4: Simplify right side
   13,016.57x = 80,600,533.02
5. Step 5: Solve for x
   x = 80,600,533.02/13,016.57
6. Step 6: Final answer
   x = 6,192.15