Finding the Fourth Proportional to 10,623.69, 16,035.39 and 10,623.69

Step by Step Solution

1. Step 1: Write the proportion equation
   10,623.69 : 16,035.39 = 10,623.69 : x
2. Step 2: Convert to fraction form
   10,623.69/16,035.39 = 10,623.69/x
3. Step 3: Cross multiply
   10,623.69x = 16,035.39 × 10,623.69
4. Step 4: Simplify right side
   10,623.69x = 170,355,012.39
5. Step 5: Solve for x
   x = 170,355,012.39/10,623.69
6. Step 6: Final answer
   x = 16,035.39