Finding the Fourth Proportional to 16,251.91, 22,434.54 and 9,880.53

Step by Step Solution

1. Step 1: Write the proportion equation
   16,251.91 : 22,434.54 = 9,880.53 : x
2. Step 2: Convert to fraction form
   16,251.91/22,434.54 = 9,880.53/x
3. Step 3: Cross multiply
   16,251.91x = 22,434.54 × 9,880.53
4. Step 4: Simplify right side
   16,251.91x = 221,665,145.51
5. Step 5: Solve for x
   x = 221,665,145.51/16,251.91
6. Step 6: Final answer
   x = 13,639.33