Finding the Fourth Proportional to 12,312.01, 16,986.90 and 7,276.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,312.01 : 16,986.90 = 7,276.69 : x
2. Step 2: Convert to fraction form
   12,312.01/16,986.90 = 7,276.69/x
3. Step 3: Cross multiply
   12,312.01x = 16,986.90 × 7,276.69
4. Step 4: Simplify right side
   12,312.01x = 123,608,405.36
5. Step 5: Solve for x
   x = 123,608,405.36/12,312.01
6. Step 6: Final answer
   x = 10,039.66