Finding the Fourth Proportional to 21,789.19, 30,070.06 and 17,065.27

Step by Step Solution

1. Step 1: Write the proportion equation
   21,789.19 : 30,070.06 = 17,065.27 : x
2. Step 2: Convert to fraction form
   21,789.19/30,070.06 = 17,065.27/x
3. Step 3: Cross multiply
   21,789.19x = 30,070.06 × 17,065.27
4. Step 4: Simplify right side
   21,789.19x = 513,153,566.59
5. Step 5: Solve for x
   x = 513,153,566.59/21,789.19
6. Step 6: Final answer
   x = 23,550.84