Finding the Fourth Proportional to 6,887.72, 9,504.86 and 3,903.84

Step by Step Solution

1. Step 1: Write the proportion equation
   6,887.72 : 9,504.86 = 3,903.84 : x
2. Step 2: Convert to fraction form
   6,887.72/9,504.86 = 3,903.84/x
3. Step 3: Cross multiply
   6,887.72x = 9,504.86 × 3,903.84
4. Step 4: Simplify right side
   6,887.72x = 37,105,385.62
5. Step 5: Solve for x
   x = 37,105,385.62/6,887.72
6. Step 6: Final answer
   x = 5,387.18