Finding the Fourth Proportional to 13,005.56, 19,511.58 and 3,771.56

Step by Step Solution

1. Step 1: Write the proportion equation
   13,005.56 : 19,511.58 = 3,771.56 : x
2. Step 2: Convert to fraction form
   13,005.56/19,511.58 = 3,771.56/x
3. Step 3: Cross multiply
   13,005.56x = 19,511.58 × 3,771.56
4. Step 4: Simplify right side
   13,005.56x = 73,589,157.59
5. Step 5: Solve for x
   x = 73,589,157.59/13,005.56
6. Step 6: Final answer
   x = 5,658.28