Finding the Fourth Proportional to 10,934.46, 16,404.57 and 3,915.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,934.46 : 16,404.57 = 3,915.18 : x
2. Step 2: Convert to fraction form
   10,934.46/16,404.57 = 3,915.18/x
3. Step 3: Cross multiply
   10,934.46x = 16,404.57 × 3,915.18
4. Step 4: Simplify right side
   10,934.46x = 64,226,844.37
5. Step 5: Solve for x
   x = 64,226,844.37/10,934.46
6. Step 6: Final answer
   x = 5,873.80