Finding the Fourth Proportional to 12,854.50, 19,283.77 and 5,459.00

Step by Step Solution

1. Step 1: Write the proportion equation
   12,854.50 : 19,283.77 = 5,459.00 : x
2. Step 2: Convert to fraction form
   12,854.50/19,283.77 = 5,459.00/x
3. Step 3: Cross multiply
   12,854.50x = 19,283.77 × 5,459.00
4. Step 4: Simplify right side
   12,854.50x = 105,270,010.83
5. Step 5: Solve for x
   x = 105,270,010.83/12,854.50
6. Step 6: Final answer
   x = 8,189.35