Finding the Fourth Proportional to 12,416.56, 17,133.96 and 7,111.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,416.56 : 17,133.96 = 7,111.24 : x
2. Step 2: Convert to fraction form
   12,416.56/17,133.96 = 7,111.24/x
3. Step 3: Cross multiply
   12,416.56x = 17,133.96 × 7,111.24
4. Step 4: Simplify right side
   12,416.56x = 121,843,701.71
5. Step 5: Solve for x
   x = 121,843,701.71/12,416.56
6. Step 6: Final answer
   x = 9,813.00