Finding the Fourth Proportional to 11,085.25, 15,297.63 and 7,904.08

Step by Step Solution

1. Step 1: Write the proportion equation
   11,085.25 : 15,297.63 = 7,904.08 : x
2. Step 2: Convert to fraction form
   11,085.25/15,297.63 = 7,904.08/x
3. Step 3: Cross multiply
   11,085.25x = 15,297.63 × 7,904.08
4. Step 4: Simplify right side
   11,085.25x = 120,913,715.23
5. Step 5: Solve for x
   x = 120,913,715.23/11,085.25
6. Step 6: Final answer
   x = 10,907.63