Finding the Fourth Proportional to 8,858.69, 12,214.73 and 7,064.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,858.69 : 12,214.73 = 7,064.76 : x
2. Step 2: Convert to fraction form
   8,858.69/12,214.73 = 7,064.76/x
3. Step 3: Cross multiply
   8,858.69x = 12,214.73 × 7,064.76
4. Step 4: Simplify right side
   8,858.69x = 86,294,100.59
5. Step 5: Solve for x
   x = 86,294,100.59/8,858.69
6. Step 6: Final answer
   x = 9,741.19