Finding the Fourth Proportional to 16,886.34, 25,329.48 and 4,406.31

Step by Step Solution

1. Step 1: Write the proportion equation
   16,886.34 : 25,329.48 = 4,406.31 : x
2. Step 2: Convert to fraction form
   16,886.34/25,329.48 = 4,406.31/x
3. Step 3: Cross multiply
   16,886.34x = 25,329.48 × 4,406.31
4. Step 4: Simplify right side
   16,886.34x = 111,609,541.02
5. Step 5: Solve for x
   x = 111,609,541.02/16,886.34
6. Step 6: Final answer
   x = 6,609.46