Finding the Fourth Proportional to 12,666.96, 17,479.76 and 7,360.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,666.96 : 17,479.76 = 7,360.92 : x
2. Step 2: Convert to fraction form
   12,666.96/17,479.76 = 7,360.92/x
3. Step 3: Cross multiply
   12,666.96x = 17,479.76 × 7,360.92
4. Step 4: Simplify right side
   12,666.96x = 128,667,114.98
5. Step 5: Solve for x
   x = 128,667,114.98/12,666.96
6. Step 6: Final answer
   x = 10,157.69