Finding the Fourth Proportional to 6,887.97, 9,505.20 and 3,904.08

Step by Step Solution

1. Step 1: Write the proportion equation
   6,887.97 : 9,505.20 = 3,904.08 : x
2. Step 2: Convert to fraction form
   6,887.97/9,505.20 = 3,904.08/x
3. Step 3: Cross multiply
   6,887.97x = 9,505.20 × 3,904.08
4. Step 4: Simplify right side
   6,887.97x = 37,109,061.22
5. Step 5: Solve for x
   x = 37,109,061.22/6,887.97
6. Step 6: Final answer
   x = 5,387.52