Finding the Fourth Proportional to 12,825.34, 17,704.58 and 7,791.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,825.34 : 17,704.58 = 7,791.19 : x
2. Step 2: Convert to fraction form
   12,825.34/17,704.58 = 7,791.19/x
3. Step 3: Cross multiply
   12,825.34x = 17,704.58 × 7,791.19
4. Step 4: Simplify right side
   12,825.34x = 137,939,663.43
5. Step 5: Solve for x
   x = 137,939,663.43/12,825.34
6. Step 6: Final answer
   x = 10,755.25