Finding the Fourth Proportional to 13,956.56, 19,259.34 and 7,667.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,956.56 : 19,259.34 = 7,667.72 : x
2. Step 2: Convert to fraction form
   13,956.56/19,259.34 = 7,667.72/x
3. Step 3: Cross multiply
   13,956.56x = 19,259.34 × 7,667.72
4. Step 4: Simplify right side
   13,956.56x = 147,675,226.50
5. Step 5: Solve for x
   x = 147,675,226.50/13,956.56
6. Step 6: Final answer
   x = 10,581.06