Finding the Fourth Proportional to 9,156.42, 13,731.35 and 3,959.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,156.42 : 13,731.35 = 3,959.46 : x
2. Step 2: Convert to fraction form
   9,156.42/13,731.35 = 3,959.46/x
3. Step 3: Cross multiply
   9,156.42x = 13,731.35 × 3,959.46
4. Step 4: Simplify right side
   9,156.42x = 54,368,711.27
5. Step 5: Solve for x
   x = 54,368,711.27/9,156.42
6. Step 6: Final answer
   x = 5,937.77