Finding the Fourth Proportional to 10,016.09, 15,009.79 and 5,624.32

Step by Step Solution

1. Step 1: Write the proportion equation
   10,016.09 : 15,009.79 = 5,624.32 : x
2. Step 2: Convert to fraction form
   10,016.09/15,009.79 = 5,624.32/x
3. Step 3: Cross multiply
   10,016.09x = 15,009.79 × 5,624.32
4. Step 4: Simplify right side
   10,016.09x = 84,419,862.09
5. Step 5: Solve for x
   x = 84,419,862.09/10,016.09
6. Step 6: Final answer
   x = 8,428.42