Finding the Fourth Proportional to 13,259.49, 19,865.83 and 7,005.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,259.49 : 19,865.83 = 7,005.69 : x
2. Step 2: Convert to fraction form
   13,259.49/19,865.83 = 7,005.69/x
3. Step 3: Cross multiply
   13,259.49x = 19,865.83 × 7,005.69
4. Step 4: Simplify right side
   13,259.49x = 139,173,846.57
5. Step 5: Solve for x
   x = 139,173,846.57/13,259.49
6. Step 6: Final answer
   x = 10,496.17