Finding the Fourth Proportional to 13,016.49, 19,528.38 and 5,230.77

Step by Step Solution

1. Step 1: Write the proportion equation
   13,016.49 : 19,528.38 = 5,230.77 : x
2. Step 2: Convert to fraction form
   13,016.49/19,528.38 = 5,230.77/x
3. Step 3: Cross multiply
   13,016.49x = 19,528.38 × 5,230.77
4. Step 4: Simplify right side
   13,016.49x = 102,148,464.25
5. Step 5: Solve for x
   x = 102,148,464.25/13,016.49
6. Step 6: Final answer
   x = 7,847.62