Finding the Fourth Proportional to 10,200.69, 15,288.73 and 5,267.63

Step by Step Solution

1. Step 1: Write the proportion equation
   10,200.69 : 15,288.73 = 5,267.63 : x
2. Step 2: Convert to fraction form
   10,200.69/15,288.73 = 5,267.63/x
3. Step 3: Cross multiply
   10,200.69x = 15,288.73 × 5,267.63
4. Step 4: Simplify right side
   10,200.69x = 80,535,397.86
5. Step 5: Solve for x
   x = 80,535,397.86/10,200.69
6. Step 6: Final answer
   x = 7,895.09