Finding the Fourth Proportional to 11,279.14, 16,915.42 and 3,381.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,279.14 : 16,915.42 = 3,381.34 : x
2. Step 2: Convert to fraction form
   11,279.14/16,915.42 = 3,381.34/x
3. Step 3: Cross multiply
   11,279.14x = 16,915.42 × 3,381.34
4. Step 4: Simplify right side
   11,279.14x = 57,196,748.20
5. Step 5: Solve for x
   x = 57,196,748.20/11,279.14
6. Step 6: Final answer
   x = 5,071.02