Finding the Fourth Proportional to 11,158.34, 16,729.30 and 5,319.05

Step by Step Solution

1. Step 1: Write the proportion equation
   11,158.34 : 16,729.30 = 5,319.05 : x
2. Step 2: Convert to fraction form
   11,158.34/16,729.30 = 5,319.05/x
3. Step 3: Cross multiply
   11,158.34x = 16,729.30 × 5,319.05
4. Step 4: Simplify right side
   11,158.34x = 88,983,906.17
5. Step 5: Solve for x
   x = 88,983,906.17/11,158.34
6. Step 6: Final answer
   x = 7,974.66