Finding the Fourth Proportional to 7,039.76, 9,714.72 and 3,895.96

Step by Step Solution

1. Step 1: Write the proportion equation
   7,039.76 : 9,714.72 = 3,895.96 : x
2. Step 2: Convert to fraction form
   7,039.76/9,714.72 = 3,895.96/x
3. Step 3: Cross multiply
   7,039.76x = 9,714.72 × 3,895.96
4. Step 4: Simplify right side
   7,039.76x = 37,848,160.53
5. Step 5: Solve for x
   x = 37,848,160.53/7,039.76
6. Step 6: Final answer
   x = 5,376.34