Finding the Fourth Proportional to 11,904.42, 17,857.82 and 4,409.99

Step by Step Solution

1. Step 1: Write the proportion equation
   11,904.42 : 17,857.82 = 4,409.99 : x
2. Step 2: Convert to fraction form
   11,904.42/17,857.82 = 4,409.99/x
3. Step 3: Cross multiply
   11,904.42x = 17,857.82 × 4,409.99
4. Step 4: Simplify right side
   11,904.42x = 78,752,696.28
5. Step 5: Solve for x
   x = 78,752,696.28/11,904.42
6. Step 6: Final answer
   x = 6,615.42