Finding the Fourth Proportional to 11,433.47, 17,080.93 and 7,239.90

Step by Step Solution

1. Step 1: Write the proportion equation
   11,433.47 : 17,080.93 = 7,239.90 : x
2. Step 2: Convert to fraction form
   11,433.47/17,080.93 = 7,239.90/x
3. Step 3: Cross multiply
   11,433.47x = 17,080.93 × 7,239.90
4. Step 4: Simplify right side
   11,433.47x = 123,664,188.91
5. Step 5: Solve for x
   x = 123,664,188.91/11,433.47
6. Step 6: Final answer
   x = 10,815.98