Finding the Fourth Proportional to 13,895.56, 20,847.25 and 5,581.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,895.56 : 20,847.25 = 5,581.42 : x
2. Step 2: Convert to fraction form
   13,895.56/20,847.25 = 5,581.42/x
3. Step 3: Cross multiply
   13,895.56x = 20,847.25 × 5,581.42
4. Step 4: Simplify right side
   13,895.56x = 116,357,258.10
5. Step 5: Solve for x
   x = 116,357,258.10/13,895.56
6. Step 6: Final answer
   x = 8,373.70