Finding the Fourth Proportional to 10,852.56, 16,253.52 and 7,923.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,852.56 : 16,253.52 = 7,923.60 : x
2. Step 2: Convert to fraction form
   10,852.56/16,253.52 = 7,923.60/x
3. Step 3: Cross multiply
   10,852.56x = 16,253.52 × 7,923.60
4. Step 4: Simplify right side
   10,852.56x = 128,786,391.07
5. Step 5: Solve for x
   x = 128,786,391.07/10,852.56
6. Step 6: Final answer
   x = 11,866.91