Finding the Fourth Proportional to 10,427.69, 15,643.58 and 3,853.93

Step by Step Solution

1. Step 1: Write the proportion equation
   10,427.69 : 15,643.58 = 3,853.93 : x
2. Step 2: Convert to fraction form
   10,427.69/15,643.58 = 3,853.93/x
3. Step 3: Cross multiply
   10,427.69x = 15,643.58 × 3,853.93
4. Step 4: Simplify right side
   10,427.69x = 60,289,254.90
5. Step 5: Solve for x
   x = 60,289,254.90/10,427.69
6. Step 6: Final answer
   x = 5,781.65