Finding the Fourth Proportional to 10,856.86, 16,287.59 and 3,461.94

Step by Step Solution

1. Step 1: Write the proportion equation
   10,856.86 : 16,287.59 = 3,461.94 : x
2. Step 2: Convert to fraction form
   10,856.86/16,287.59 = 3,461.94/x
3. Step 3: Cross multiply
   10,856.86x = 16,287.59 × 3,461.94
4. Step 4: Simplify right side
   10,856.86x = 56,386,667.98
5. Step 5: Solve for x
   x = 56,386,667.98/10,856.86
6. Step 6: Final answer
   x = 5,193.65