Finding the Fourth Proportional to 12,620.00, 18,926.56 and 5,222.68

Step by Step Solution

1. Step 1: Write the proportion equation
   12,620.00 : 18,926.56 = 5,222.68 : x
2. Step 2: Convert to fraction form
   12,620.00/18,926.56 = 5,222.68/x
3. Step 3: Cross multiply
   12,620.00x = 18,926.56 × 5,222.68
4. Step 4: Simplify right side
   12,620.00x = 98,847,325.59
5. Step 5: Solve for x
   x = 98,847,325.59/12,620.00
6. Step 6: Final answer
   x = 7,832.59