Finding the Fourth Proportional to 12,830, 19,245.55 and 4,064.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,830 : 19,245.55 = 4,064.72 : x
2. Step 2: Convert to fraction form
   12,830/19,245.55 = 4,064.72/x
3. Step 3: Cross multiply
   12,830x = 19,245.55 × 4,064.72
4. Step 4: Simplify right side
   12,830x = 78,227,772.00
5. Step 5: Solve for x
   x = 78,227,772.00/12,830
6. Step 6: Final answer
   x = 6,097.25