Finding the Fourth Proportional to 8,456.30, 11,670.93 and 4,870.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,456.30 : 11,670.93 = 4,870.56 : x
2. Step 2: Convert to fraction form
   8,456.30/11,670.93 = 4,870.56/x
3. Step 3: Cross multiply
   8,456.30x = 11,670.93 × 4,870.56
4. Step 4: Simplify right side
   8,456.30x = 56,843,923.47
5. Step 5: Solve for x
   x = 56,843,923.47/8,456.30
6. Step 6: Final answer
   x = 6,722.08