Finding the Fourth Proportional to 17,804.00, 26,648.10 and 13,122.15

Step by Step Solution

1. Step 1: Write the proportion equation
   17,804.00 : 26,648.10 = 13,122.15 : x
2. Step 2: Convert to fraction form
   17,804.00/26,648.10 = 13,122.15/x
3. Step 3: Cross multiply
   17,804.00x = 26,648.10 × 13,122.15
4. Step 4: Simplify right side
   17,804.00x = 349,680,365.42
5. Step 5: Solve for x
   x = 349,680,365.42/17,804.00
6. Step 6: Final answer
   x = 19,640.56