Finding the Fourth Proportional to 7,086.08, 9,774.72 and 4,428.88

Step by Step Solution

1. Step 1: Write the proportion equation
   7,086.08 : 9,774.72 = 4,428.88 : x
2. Step 2: Convert to fraction form
   7,086.08/9,774.72 = 4,428.88/x
3. Step 3: Cross multiply
   7,086.08x = 9,774.72 × 4,428.88
4. Step 4: Simplify right side
   7,086.08x = 43,291,013.04
5. Step 5: Solve for x
   x = 43,291,013.04/7,086.08
6. Step 6: Final answer
   x = 6,109.30