Finding the Fourth Proportional to 73,120.50, 109,681.32 and 17,716.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73,120.50 : 109,681.32 = 17,716.50 : x
2. Step 2: Convert to fraction form
   73,120.50/109,681.32 = 17,716.50/x
3. Step 3: Cross multiply
   73,120.50x = 109,681.32 × 17,716.50
4. Step 4: Simplify right side
   73,120.50x = 1,943,169,105.78
5. Step 5: Solve for x
   x = 1,943,169,105.78/73,120.50
6. Step 6: Final answer
   x = 26,574.89