Finding the Fourth Proportional to 11,651.51, 17,486.49 and 5,082.31

Step by Step Solution

1. Step 1: Write the proportion equation
   11,651.51 : 17,486.49 = 5,082.31 : x
2. Step 2: Convert to fraction form
   11,651.51/17,486.49 = 5,082.31/x
3. Step 3: Cross multiply
   11,651.51x = 17,486.49 × 5,082.31
4. Step 4: Simplify right side
   11,651.51x = 88,871,667.43
5. Step 5: Solve for x
   x = 88,871,667.43/11,651.51
6. Step 6: Final answer
   x = 7,627.48