Finding the Fourth Proportional to 5,185.76, 7,157.18 and 3,061.32

Step by Step Solution

1. Step 1: Write the proportion equation
   5,185.76 : 7,157.18 = 3,061.32 : x
2. Step 2: Convert to fraction form
   5,185.76/7,157.18 = 3,061.32/x
3. Step 3: Cross multiply
   5,185.76x = 7,157.18 × 3,061.32
4. Step 4: Simplify right side
   5,185.76x = 21,910,418.28
5. Step 5: Solve for x
   x = 21,910,418.28/5,185.76
6. Step 6: Final answer
   x = 4,225.11