Finding the Fourth Proportional to 11,555.87, 17,306.46 and 7,160.00

Step by Step Solution

1. Step 1: Write the proportion equation
   11,555.87 : 17,306.46 = 7,160.00 : x
2. Step 2: Convert to fraction form
   11,555.87/17,306.46 = 7,160.00/x
3. Step 3: Cross multiply
   11,555.87x = 17,306.46 × 7,160.00
4. Step 4: Simplify right side
   11,555.87x = 123,914,167.07
5. Step 5: Solve for x
   x = 123,914,167.07/11,555.87
6. Step 6: Final answer
   x = 10,723.05