Finding the Fourth Proportional to 17,645.56, 26,443.86 and 7,770.04

Step by Step Solution

1. Step 1: Write the proportion equation
   17,645.56 : 26,443.86 = 7,770.04 : x
2. Step 2: Convert to fraction form
   17,645.56/26,443.86 = 7,770.04/x
3. Step 3: Cross multiply
   17,645.56x = 26,443.86 × 7,770.04
4. Step 4: Simplify right side
   17,645.56x = 205,469,849.95
5. Step 5: Solve for x
   x = 205,469,849.95/17,645.56
6. Step 6: Final answer
   x = 11,644.28