Finding the Fourth Proportional to 8,831.34, 12,186.24 and 5,245.02

Step by Step Solution

1. Step 1: Write the proportion equation
   8,831.34 : 12,186.24 = 5,245.02 : x
2. Step 2: Convert to fraction form
   8,831.34/12,186.24 = 5,245.02/x
3. Step 3: Cross multiply
   8,831.34x = 12,186.24 × 5,245.02
4. Step 4: Simplify right side
   8,831.34x = 63,917,072.52
5. Step 5: Solve for x
   x = 63,917,072.52/8,831.34
6. Step 6: Final answer
   x = 7,237.53