Finding the Fourth Proportional to 10,804.73, 14,904.07 and 7,971.20

Step by Step Solution

1. Step 1: Write the proportion equation
   10,804.73 : 14,904.07 = 7,971.20 : x
2. Step 2: Convert to fraction form
   10,804.73/14,904.07 = 7,971.20/x
3. Step 3: Cross multiply
   10,804.73x = 14,904.07 × 7,971.20
4. Step 4: Simplify right side
   10,804.73x = 118,803,322.78
5. Step 5: Solve for x
   x = 118,803,322.78/10,804.73
6. Step 6: Final answer
   x = 10,995.49