Finding the Fourth Proportional to 12,521.54, 17,279.73 and 7,805.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,521.54 : 17,279.73 = 7,805.82 : x
2. Step 2: Convert to fraction form
   12,521.54/17,279.73 = 7,805.82/x
3. Step 3: Cross multiply
   12,521.54x = 17,279.73 × 7,805.82
4. Step 4: Simplify right side
   12,521.54x = 134,882,462.03
5. Step 5: Solve for x
   x = 134,882,462.03/12,521.54
6. Step 6: Final answer
   x = 10,772.04