Finding the Fourth Proportional to 91,721.09, 137,581.83 and 25,162.17

Step by Step Solution

1. Step 1: Write the proportion equation
   91,721.09 : 137,581.83 = 25,162.17 : x
2. Step 2: Convert to fraction form
   91,721.09/137,581.83 = 25,162.17/x
3. Step 3: Cross multiply
   91,721.09x = 137,581.83 × 25,162.17
4. Step 4: Simplify right side
   91,721.09x = 3,461,857,395.37
5. Step 5: Solve for x
   x = 3,461,857,395.37/91,721.09
6. Step 6: Final answer
   x = 37,743.31