Finding the Fourth Proportional to 12,007.16, 18,010.82 and 7,873.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,007.16 : 18,010.82 = 7,873.32 : x
2. Step 2: Convert to fraction form
   12,007.16/18,010.82 = 7,873.32/x
3. Step 3: Cross multiply
   12,007.16x = 18,010.82 × 7,873.32
4. Step 4: Simplify right side
   12,007.16x = 141,804,949.32
5. Step 5: Solve for x
   x = 141,804,949.32/12,007.16
6. Step 6: Final answer
   x = 11,810.03