Finding the Fourth Proportional to 10,978.19, 16,431.92 and 7,233.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,978.19 : 16,431.92 = 7,233.06 : x
2. Step 2: Convert to fraction form
   10,978.19/16,431.92 = 7,233.06/x
3. Step 3: Cross multiply
   10,978.19x = 16,431.92 × 7,233.06
4. Step 4: Simplify right side
   10,978.19x = 118,853,063.28
5. Step 5: Solve for x
   x = 118,853,063.28/10,978.19
6. Step 6: Final answer
   x = 10,826.29