Finding the Fourth Proportional to 16,964.47, 25,442.61 and 7,111.13

Step by Step Solution

1. Step 1: Write the proportion equation
   16,964.47 : 25,442.61 = 7,111.13 : x
2. Step 2: Convert to fraction form
   16,964.47/25,442.61 = 7,111.13/x
3. Step 3: Cross multiply
   16,964.47x = 25,442.61 × 7,111.13
4. Step 4: Simplify right side
   16,964.47x = 180,925,553.37
5. Step 5: Solve for x
   x = 180,925,553.37/16,964.47
6. Step 6: Final answer
   x = 10,664.97