Finding the Fourth Proportional to 10,842.48, 16,242.72 and 7,133.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,842.48 : 16,242.72 = 7,133.52 : x
2. Step 2: Convert to fraction form
   10,842.48/16,242.72 = 7,133.52/x
3. Step 3: Cross multiply
   10,842.48x = 16,242.72 × 7,133.52
4. Step 4: Simplify right side
   10,842.48x = 115,867,767.97
5. Step 5: Solve for x
   x = 115,867,767.97/10,842.48
6. Step 6: Final answer
   x = 10,686.46