Finding the Fourth Proportional to 8,857.01, 12,222.69 and 4,878.13

Step by Step Solution

1. Step 1: Write the proportion equation
   8,857.01 : 12,222.69 = 4,878.13 : x
2. Step 2: Convert to fraction form
   8,857.01/12,222.69 = 4,878.13/x
3. Step 3: Cross multiply
   8,857.01x = 12,222.69 × 4,878.13
4. Step 4: Simplify right side
   8,857.01x = 59,623,870.77
5. Step 5: Solve for x
   x = 59,623,870.77/8,857.01
6. Step 6: Final answer
   x = 6,731.83