Finding the Fourth Proportional to 11,665.99, 17,487.91 and 7,437.38

Step by Step Solution

1. Step 1: Write the proportion equation
   11,665.99 : 17,487.91 = 7,437.38 : x
2. Step 2: Convert to fraction form
   11,665.99/17,487.91 = 7,437.38/x
3. Step 3: Cross multiply
   11,665.99x = 17,487.91 × 7,437.38
4. Step 4: Simplify right side
   11,665.99x = 130,064,144.89
5. Step 5: Solve for x
   x = 130,064,144.89/11,665.99
6. Step 6: Final answer
   x = 11,149.00