Finding the Fourth Proportional to 19,530.56, 29,300.81 and 5,679.56

Step by Step Solution

1. Step 1: Write the proportion equation
   19,530.56 : 29,300.81 = 5,679.56 : x
2. Step 2: Convert to fraction form
   19,530.56/29,300.81 = 5,679.56/x
3. Step 3: Cross multiply
   19,530.56x = 29,300.81 × 5,679.56
4. Step 4: Simplify right side
   19,530.56x = 166,415,753.30
5. Step 5: Solve for x
   x = 166,415,753.30/19,530.56
6. Step 6: Final answer
   x = 8,520.79