Finding the Fourth Proportional to 9,538.52, 14,302.88 and 3,990.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,538.52 : 14,302.88 = 3,990.34 : x
2. Step 2: Convert to fraction form
   9,538.52/14,302.88 = 3,990.34/x
3. Step 3: Cross multiply
   9,538.52x = 14,302.88 × 3,990.34
4. Step 4: Simplify right side
   9,538.52x = 57,073,354.18
5. Step 5: Solve for x
   x = 57,073,354.18/9,538.52
6. Step 6: Final answer
   x = 5,983.46