Finding the Fourth Proportional to 12,520.98, 18,775.80 and 5,955.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,520.98 : 18,775.80 = 5,955.12 : x
2. Step 2: Convert to fraction form
   12,520.98/18,775.80 = 5,955.12/x
3. Step 3: Cross multiply
   12,520.98x = 18,775.80 × 5,955.12
4. Step 4: Simplify right side
   12,520.98x = 111,812,142.10
5. Step 5: Solve for x
   x = 111,812,142.10/12,520.98
6. Step 6: Final answer
   x = 8,929.98