Finding the Fourth Proportional to 7,005.80, 10,494.34 and 5,611.59

Step by Step Solution

1. Step 1: Write the proportion equation
   7,005.80 : 10,494.34 = 5,611.59 : x
2. Step 2: Convert to fraction form
   7,005.80/10,494.34 = 5,611.59/x
3. Step 3: Cross multiply
   7,005.80x = 10,494.34 × 5,611.59
4. Step 4: Simplify right side
   7,005.80x = 58,889,919.37
5. Step 5: Solve for x
   x = 58,889,919.37/7,005.80
6. Step 6: Final answer
   x = 8,405.88