Finding the Fourth Proportional to 10,449.74, 15,678.04 and 3,876.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,449.74 : 15,678.04 = 3,876.42 : x
2. Step 2: Convert to fraction form
   10,449.74/15,678.04 = 3,876.42/x
3. Step 3: Cross multiply
   10,449.74x = 15,678.04 × 3,876.42
4. Step 4: Simplify right side
   10,449.74x = 60,774,667.82
5. Step 5: Solve for x
   x = 60,774,667.82/10,449.74
6. Step 6: Final answer
   x = 5,815.90