Finding the Fourth Proportional to 19,904.86, 27,470.37 and 10,954.06

Step by Step Solution

1. Step 1: Write the proportion equation
   19,904.86 : 27,470.37 = 10,954.06 : x
2. Step 2: Convert to fraction form
   19,904.86/27,470.37 = 10,954.06/x
3. Step 3: Cross multiply
   19,904.86x = 27,470.37 × 10,954.06
4. Step 4: Simplify right side
   19,904.86x = 300,912,081.20
5. Step 5: Solve for x
   x = 300,912,081.20/19,904.86
6. Step 6: Final answer
   x = 15,117.52