Finding the Fourth Proportional to 9,886.52, 14,831.39 and 4,689.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,886.52 : 14,831.39 = 4,689.56 : x
2. Step 2: Convert to fraction form
   9,886.52/14,831.39 = 4,689.56/x
3. Step 3: Cross multiply
   9,886.52x = 14,831.39 × 4,689.56
4. Step 4: Simplify right side
   9,886.52x = 69,552,630.86
5. Step 5: Solve for x
   x = 69,552,630.86/9,886.52
6. Step 6: Final answer
   x = 7,035.10