Finding the Fourth Proportional to 12,002.28, 17,979.54 and 7,316.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,002.28 : 17,979.54 = 7,316.52 : x
2. Step 2: Convert to fraction form
   12,002.28/17,979.54 = 7,316.52/x
3. Step 3: Cross multiply
   12,002.28x = 17,979.54 × 7,316.52
4. Step 4: Simplify right side
   12,002.28x = 131,547,664.00
5. Step 5: Solve for x
   x = 131,547,664.00/12,002.28
6. Step 6: Final answer
   x = 10,960.22