Finding the Fourth Proportional to 5,681.16, 7,839.86 and 5,513.49

Step by Step Solution

1. Step 1: Write the proportion equation
   5,681.16 : 7,839.86 = 5,513.49 : x
2. Step 2: Convert to fraction form
   5,681.16/7,839.86 = 5,513.49/x
3. Step 3: Cross multiply
   5,681.16x = 7,839.86 × 5,513.49
4. Step 4: Simplify right side
   5,681.16x = 43,224,962.14
5. Step 5: Solve for x
   x = 43,224,962.14/5,681.16
6. Step 6: Final answer
   x = 7,608.47