Finding the Fourth Proportional to 12,581.02, 17,364.32 and 9,591.51

Step by Step Solution

1. Step 1: Write the proportion equation
   12,581.02 : 17,364.32 = 9,591.51 : x
2. Step 2: Convert to fraction form
   12,581.02/17,364.32 = 9,591.51/x
3. Step 3: Cross multiply
   12,581.02x = 17,364.32 × 9,591.51
4. Step 4: Simplify right side
   12,581.02x = 166,550,156.00
5. Step 5: Solve for x
   x = 166,550,156.00/12,581.02
6. Step 6: Final answer
   x = 13,238.21