Finding the Fourth Proportional to 17,765.75, 26,636.78 and 7,085.00

Step by Step Solution

1. Step 1: Write the proportion equation
   17,765.75 : 26,636.78 = 7,085.00 : x
2. Step 2: Convert to fraction form
   17,765.75/26,636.78 = 7,085.00/x
3. Step 3: Cross multiply
   17,765.75x = 26,636.78 × 7,085.00
4. Step 4: Simplify right side
   17,765.75x = 188,721,670.60
5. Step 5: Solve for x
   x = 188,721,670.60/17,765.75
6. Step 6: Final answer
   x = 10,622.78