Finding the Fourth Proportional to 9,018.71, 13,528.08 and 3,173.96

Step by Step Solution

1. Step 1: Write the proportion equation
   9,018.71 : 13,528.08 = 3,173.96 : x
2. Step 2: Convert to fraction form
   9,018.71/13,528.08 = 3,173.96/x
3. Step 3: Cross multiply
   9,018.71x = 13,528.08 × 3,173.96
4. Step 4: Simplify right side
   9,018.71x = 42,937,584.80
5. Step 5: Solve for x
   x = 42,937,584.80/9,018.71
6. Step 6: Final answer
   x = 4,760.95