Finding the Fourth Proportional to 12,259.50, 16,919.55 and 7,291.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,259.50 : 16,919.55 = 7,291.50 : x
2. Step 2: Convert to fraction form
   12,259.50/16,919.55 = 7,291.50/x
3. Step 3: Cross multiply
   12,259.50x = 16,919.55 × 7,291.50
4. Step 4: Simplify right side
   12,259.50x = 123,368,898.83
5. Step 5: Solve for x
   x = 123,368,898.83/12,259.50
6. Step 6: Final answer
   x = 10,063.13