Finding the Fourth Proportional to 16,886.71, 23,288.52 and 10,912.11

Step by Step Solution

1. Step 1: Write the proportion equation
   16,886.71 : 23,288.52 = 10,912.11 : x
2. Step 2: Convert to fraction form
   16,886.71/23,288.52 = 10,912.11/x
3. Step 3: Cross multiply
   16,886.71x = 23,288.52 × 10,912.11
4. Step 4: Simplify right side
   16,886.71x = 254,126,891.98
5. Step 5: Solve for x
   x = 254,126,891.98/16,886.71
6. Step 6: Final answer
   x = 15,048.93