Finding the Fourth Proportional to 10,923.05, 16,381.05 and 3,525.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,923.05 : 16,381.05 = 3,525.78 : x
2. Step 2: Convert to fraction form
   10,923.05/16,381.05 = 3,525.78/x
3. Step 3: Cross multiply
   10,923.05x = 16,381.05 × 3,525.78
4. Step 4: Simplify right side
   10,923.05x = 57,755,978.47
5. Step 5: Solve for x
   x = 57,755,978.47/10,923.05
6. Step 6: Final answer
   x = 5,287.53