Finding the Fourth Proportional to 13,269.79, 19,869.18 and 7,016.86

Step by Step Solution

1. Step 1: Write the proportion equation
   13,269.79 : 19,869.18 = 7,016.86 : x
2. Step 2: Convert to fraction form
   13,269.79/19,869.18 = 7,016.86/x
3. Step 3: Cross multiply
   13,269.79x = 19,869.18 × 7,016.86
4. Step 4: Simplify right side
   13,269.79x = 139,419,254.37
5. Step 5: Solve for x
   x = 139,419,254.37/13,269.79
6. Step 6: Final answer
   x = 10,506.52