Finding the Fourth Proportional to 10,935.41, 16,405.71 and 3,539.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,935.41 : 16,405.71 = 3,539.86 : x
2. Step 2: Convert to fraction form
   10,935.41/16,405.71 = 3,539.86/x
3. Step 3: Cross multiply
   10,935.41x = 16,405.71 × 3,539.86
4. Step 4: Simplify right side
   10,935.41x = 58,073,937.11
5. Step 5: Solve for x
   x = 58,073,937.11/10,935.41
6. Step 6: Final answer
   x = 5,310.63