Finding the Fourth Proportional to 12,618.09, 17,411.31 and 7,512.84

Step by Step Solution

1. Step 1: Write the proportion equation
   12,618.09 : 17,411.31 = 7,512.84 : x
2. Step 2: Convert to fraction form
   12,618.09/17,411.31 = 7,512.84/x
3. Step 3: Cross multiply
   12,618.09x = 17,411.31 × 7,512.84
4. Step 4: Simplify right side
   12,618.09x = 130,808,386.22
5. Step 5: Solve for x
   x = 130,808,386.22/12,618.09
6. Step 6: Final answer
   x = 10,366.73