Finding the Fourth Proportional to 12,561.06, 17,300.96 and 9,364.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,561.06 : 17,300.96 = 9,364.10 : x
2. Step 2: Convert to fraction form
   12,561.06/17,300.96 = 9,364.10/x
3. Step 3: Cross multiply
   12,561.06x = 17,300.96 × 9,364.10
4. Step 4: Simplify right side
   12,561.06x = 162,007,919.54
5. Step 5: Solve for x
   x = 162,007,919.54/12,561.06
6. Step 6: Final answer
   x = 12,897.63