Finding the Fourth Proportional to 10,840.55, 16,263.18 and 3,445.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,840.55 : 16,263.18 = 3,445.61 : x
2. Step 2: Convert to fraction form
   10,840.55/16,263.18 = 3,445.61/x
3. Step 3: Cross multiply
   10,840.55x = 16,263.18 × 3,445.61
4. Step 4: Simplify right side
   10,840.55x = 56,036,494.32
5. Step 5: Solve for x
   x = 56,036,494.32/10,840.55
6. Step 6: Final answer
   x = 5,169.16