Finding the Fourth Proportional to 11,518.49, 15,900.41 and 7,743.84

Step by Step Solution

1. Step 1: Write the proportion equation
   11,518.49 : 15,900.41 = 7,743.84 : x
2. Step 2: Convert to fraction form
   11,518.49/15,900.41 = 7,743.84/x
3. Step 3: Cross multiply
   11,518.49x = 15,900.41 × 7,743.84
4. Step 4: Simplify right side
   11,518.49x = 123,130,250.33
5. Step 5: Solve for x
   x = 123,130,250.33/11,518.49
6. Step 6: Final answer
   x = 10,689.80