Finding the Fourth Proportional to 8,804.67, 12,156.06 and 7,858.81

Step by Step Solution

1. Step 1: Write the proportion equation
   8,804.67 : 12,156.06 = 7,858.81 : x
2. Step 2: Convert to fraction form
   8,804.67/12,156.06 = 7,858.81/x
3. Step 3: Cross multiply
   8,804.67x = 12,156.06 × 7,858.81
4. Step 4: Simplify right side
   8,804.67x = 95,532,165.89
5. Step 5: Solve for x
   x = 95,532,165.89/8,804.67
6. Step 6: Final answer
   x = 10,850.17