Finding the Fourth Proportional to 8,898.72, 12,279.96 and 4,919.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,898.72 : 12,279.96 = 4,919.82 : x
2. Step 2: Convert to fraction form
   8,898.72/12,279.96 = 4,919.82/x
3. Step 3: Cross multiply
   8,898.72x = 12,279.96 × 4,919.82
4. Step 4: Simplify right side
   8,898.72x = 60,415,192.81
5. Step 5: Solve for x
   x = 60,415,192.81/8,898.72
6. Step 6: Final answer
   x = 6,789.20