Finding the Fourth Proportional to 16,943.36, 23,375.52 and 10,978.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,943.36 : 23,375.52 = 10,978.32 : x
2. Step 2: Convert to fraction form
   16,943.36/23,375.52 = 10,978.32/x
3. Step 3: Cross multiply
   16,943.36x = 23,375.52 × 10,978.32
4. Step 4: Simplify right side
   16,943.36x = 256,623,938.73
5. Step 5: Solve for x
   x = 256,623,938.73/16,943.36
6. Step 6: Final answer
   x = 15,145.99