Finding the Fourth Proportional to 8,976.72, 13,460.76 and 3,779.76

Step by Step Solution

1. Step 1: Write the proportion equation
   8,976.72 : 13,460.76 = 3,779.76 : x
2. Step 2: Convert to fraction form
   8,976.72/13,460.76 = 3,779.76/x
3. Step 3: Cross multiply
   8,976.72x = 13,460.76 × 3,779.76
4. Step 4: Simplify right side
   8,976.72x = 50,878,442.22
5. Step 5: Solve for x
   x = 50,878,442.22/8,976.72
6. Step 6: Final answer
   x = 5,667.82