Finding the Fourth Proportional to 43,498.81, 65,252.67 and 16,858.72

Step by Step Solution

1. Step 1: Write the proportion equation
   43,498.81 : 65,252.67 = 16,858.72 : x
2. Step 2: Convert to fraction form
   43,498.81/65,252.67 = 16,858.72/x
3. Step 3: Cross multiply
   43,498.81x = 65,252.67 × 16,858.72
4. Step 4: Simplify right side
   43,498.81x = 1,100,076,492.78
5. Step 5: Solve for x
   x = 1,100,076,492.78/43,498.81
6. Step 6: Final answer
   x = 25,289.81