Finding the Fourth Proportional to 7,181.33, 9,899.82 and 5,188.73

Step by Step Solution

1. Step 1: Write the proportion equation
   7,181.33 : 9,899.82 = 5,188.73 : x
2. Step 2: Convert to fraction form
   7,181.33/9,899.82 = 5,188.73/x
3. Step 3: Cross multiply
   7,181.33x = 9,899.82 × 5,188.73
4. Step 4: Simplify right side
   7,181.33x = 51,367,443.53
5. Step 5: Solve for x
   x = 51,367,443.53/7,181.33
6. Step 6: Final answer
   x = 7,152.92