Finding the Fourth Proportional to 10,853.12, 16,279.60 and 3,061.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,853.12 : 16,279.60 = 3,061.88 : x
2. Step 2: Convert to fraction form
   10,853.12/16,279.60 = 3,061.88/x
3. Step 3: Cross multiply
   10,853.12x = 16,279.60 × 3,061.88
4. Step 4: Simplify right side
   10,853.12x = 49,846,181.65
5. Step 5: Solve for x
   x = 49,846,181.65/10,853.12
6. Step 6: Final answer
   x = 4,592.80