Finding the Fourth Proportional to 21,618.82, 29,822.62 and 17,590.15

Step by Step Solution

1. Step 1: Write the proportion equation
   21,618.82 : 29,822.62 = 17,590.15 : x
2. Step 2: Convert to fraction form
   21,618.82/29,822.62 = 17,590.15/x
3. Step 3: Cross multiply
   21,618.82x = 29,822.62 × 17,590.15
4. Step 4: Simplify right side
   21,618.82x = 524,584,359.19
5. Step 5: Solve for x
   x = 524,584,359.19/21,618.82
6. Step 6: Final answer
   x = 24,265.17