Finding the Fourth Proportional to 11,442.53, 15,779.59 and 8,923.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,442.53 : 15,779.59 = 8,923.72 : x
2. Step 2: Convert to fraction form
   11,442.53/15,779.59 = 8,923.72/x
3. Step 3: Cross multiply
   11,442.53x = 15,779.59 × 8,923.72
4. Step 4: Simplify right side
   11,442.53x = 140,812,581.12
5. Step 5: Solve for x
   x = 140,812,581.12/11,442.53
6. Step 6: Final answer
   x = 12,306.08