Finding the Fourth Proportional to 8,499.28, 11,699.89 and 7,373.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499.28 : 11,699.89 = 7,373.59 : x
2. Step 2: Convert to fraction form
   8,499.28/11,699.89 = 7,373.59/x
3. Step 3: Cross multiply
   8,499.28x = 11,699.89 × 7,373.59
4. Step 4: Simplify right side
   8,499.28x = 86,270,191.91
5. Step 5: Solve for x
   x = 86,270,191.91/8,499.28
6. Step 6: Final answer
   x = 10,150.29