Finding the Fourth Proportional to 13,279.56, 19,912.82 and 7,734.84

Step by Step Solution

1. Step 1: Write the proportion equation
   13,279.56 : 19,912.82 = 7,734.84 : x
2. Step 2: Convert to fraction form
   13,279.56/19,912.82 = 7,734.84/x
3. Step 3: Cross multiply
   13,279.56x = 19,912.82 × 7,734.84
4. Step 4: Simplify right side
   13,279.56x = 154,022,476.65
5. Step 5: Solve for x
   x = 154,022,476.65/13,279.56
6. Step 6: Final answer
   x = 11,598.46