Finding the Fourth Proportional to 12,630.84, 17,410.71 and 8,645.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,630.84 : 17,410.71 = 8,645.03 : x
2. Step 2: Convert to fraction form
   12,630.84/17,410.71 = 8,645.03/x
3. Step 3: Cross multiply
   12,630.84x = 17,410.71 × 8,645.03
4. Step 4: Simplify right side
   12,630.84x = 150,516,110.27
5. Step 5: Solve for x
   x = 150,516,110.27/12,630.84
6. Step 6: Final answer
   x = 11,916.56