Finding the Fourth Proportional to 8,709.69, 12,019.56 and 4,932.87

Step by Step Solution

1. Step 1: Write the proportion equation
   8,709.69 : 12,019.56 = 4,932.87 : x
2. Step 2: Convert to fraction form
   8,709.69/12,019.56 = 4,932.87/x
3. Step 3: Cross multiply
   8,709.69x = 12,019.56 × 4,932.87
4. Step 4: Simplify right side
   8,709.69x = 59,290,926.94
5. Step 5: Solve for x
   x = 59,290,926.94/8,709.69
6. Step 6: Final answer
   x = 6,807.47