Finding the Fourth Proportional to 15,796.77, 21,799.59 and 8,723.22

Step by Step Solution

1. Step 1: Write the proportion equation
   15,796.77 : 21,799.59 = 8,723.22 : x
2. Step 2: Convert to fraction form
   15,796.77/21,799.59 = 8,723.22/x
3. Step 3: Cross multiply
   15,796.77x = 21,799.59 × 8,723.22
4. Step 4: Simplify right side
   15,796.77x = 190,162,619.48
5. Step 5: Solve for x
   x = 190,162,619.48/15,796.77
6. Step 6: Final answer
   x = 12,038.07