Finding the Fourth Proportional to 22,139.74, 30,577.53 and 17,164.09

Step by Step Solution

1. Step 1: Write the proportion equation
   22,139.74 : 30,577.53 = 17,164.09 : x
2. Step 2: Convert to fraction form
   22,139.74/30,577.53 = 17,164.09/x
3. Step 3: Cross multiply
   22,139.74x = 30,577.53 × 17,164.09
4. Step 4: Simplify right side
   22,139.74x = 524,835,476.90
5. Step 5: Solve for x
   x = 524,835,476.90/22,139.74
6. Step 6: Final answer
   x = 23,705.58