Finding the Fourth Proportional to 10,853.30, 16,281.17 and 3,455.98

Step by Step Solution

1. Step 1: Write the proportion equation
   10,853.30 : 16,281.17 = 3,455.98 : x
2. Step 2: Convert to fraction form
   10,853.30/16,281.17 = 3,455.98/x
3. Step 3: Cross multiply
   10,853.30x = 16,281.17 × 3,455.98
4. Step 4: Simplify right side
   10,853.30x = 56,267,397.90
5. Step 5: Solve for x
   x = 56,267,397.90/10,853.30
6. Step 6: Final answer
   x = 5,184.36