Finding the Fourth Proportional to 12,667.56, 17,481.12 and 7,002.70

Step by Step Solution

1. Step 1: Write the proportion equation
   12,667.56 : 17,481.12 = 7,002.70 : x
2. Step 2: Convert to fraction form
   12,667.56/17,481.12 = 7,002.70/x
3. Step 3: Cross multiply
   12,667.56x = 17,481.12 × 7,002.70
4. Step 4: Simplify right side
   12,667.56x = 122,415,039.02
5. Step 5: Solve for x
   x = 122,415,039.02/12,667.56
6. Step 6: Final answer
   x = 9,663.66