Finding the Fourth Proportional to 10,431.12, 14,395.98 and 5,955.55

Step by Step Solution

1. Step 1: Write the proportion equation
   10,431.12 : 14,395.98 = 5,955.55 : x
2. Step 2: Convert to fraction form
   10,431.12/14,395.98 = 5,955.55/x
3. Step 3: Cross multiply
   10,431.12x = 14,395.98 × 5,955.55
4. Step 4: Simplify right side
   10,431.12x = 85,735,978.69
5. Step 5: Solve for x
   x = 85,735,978.69/10,431.12
6. Step 6: Final answer
   x = 8,219.25