Finding the Fourth Proportional to 11,672.07, 17,502.42 and 3,878.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,672.07 : 17,502.42 = 3,878.25 : x
2. Step 2: Convert to fraction form
   11,672.07/17,502.42 = 3,878.25/x
3. Step 3: Cross multiply
   11,672.07x = 17,502.42 × 3,878.25
4. Step 4: Simplify right side
   11,672.07x = 67,878,760.37
5. Step 5: Solve for x
   x = 67,878,760.37/11,672.07
6. Step 6: Final answer
   x = 5,815.49