Finding the Fourth Proportional to 10,666.17, 16,004.65 and 7,196.13

Step by Step Solution

1. Step 1: Write the proportion equation
   10,666.17 : 16,004.65 = 7,196.13 : x
2. Step 2: Convert to fraction form
   10,666.17/16,004.65 = 7,196.13/x
3. Step 3: Cross multiply
   10,666.17x = 16,004.65 × 7,196.13
4. Step 4: Simplify right side
   10,666.17x = 115,171,443.99
5. Step 5: Solve for x
   x = 115,171,443.99/10,666.17
6. Step 6: Final answer
   x = 10,797.83