Finding the Fourth Proportional to 13,016.37, 19,513.61 and 10,545.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,016.37 : 19,513.61 = 10,545.06 : x
2. Step 2: Convert to fraction form
   13,016.37/19,513.61 = 10,545.06/x
3. Step 3: Cross multiply
   13,016.37x = 19,513.61 × 10,545.06
4. Step 4: Simplify right side
   13,016.37x = 205,772,188.27
5. Step 5: Solve for x
   x = 205,772,188.27/13,016.37
6. Step 6: Final answer
   x = 15,808.72