Finding the Fourth Proportional to 12,889.33, 17,786.43 and 7,583.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,889.33 : 17,786.43 = 7,583.12 : x
2. Step 2: Convert to fraction form
   12,889.33/17,786.43 = 7,583.12/x
3. Step 3: Cross multiply
   12,889.33x = 17,786.43 × 7,583.12
4. Step 4: Simplify right side
   12,889.33x = 134,876,633.06
5. Step 5: Solve for x
   x = 134,876,633.06/12,889.33
6. Step 6: Final answer
   x = 10,464.21