Finding the Fourth Proportional to 14,455.50, 19,948.59 and 7,831.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,455.50 : 19,948.59 = 7,831.50 : x
2. Step 2: Convert to fraction form
   14,455.50/19,948.59 = 7,831.50/x
3. Step 3: Cross multiply
   14,455.50x = 19,948.59 × 7,831.50
4. Step 4: Simplify right side
   14,455.50x = 156,227,382.59
5. Step 5: Solve for x
   x = 156,227,382.59/14,455.50
6. Step 6: Final answer
   x = 10,807.47