Finding the Fourth Proportional to 7,856.67, 10,836.06 and 4,870.82

Step by Step Solution

1. Step 1: Write the proportion equation
   7,856.67 : 10,836.06 = 4,870.82 : x
2. Step 2: Convert to fraction form
   7,856.67/10,836.06 = 4,870.82/x
3. Step 3: Cross multiply
   7,856.67x = 10,836.06 × 4,870.82
4. Step 4: Simplify right side
   7,856.67x = 52,780,443.59
5. Step 5: Solve for x
   x = 52,780,443.59/7,856.67
6. Step 6: Final answer
   x = 6,717.92