Finding the Fourth Proportional to 12,865.50, 17,754.93 and 7,276.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,865.50 : 17,754.93 = 7,276.50 : x
2. Step 2: Convert to fraction form
   12,865.50/17,754.93 = 7,276.50/x
3. Step 3: Cross multiply
   12,865.50x = 17,754.93 × 7,276.50
4. Step 4: Simplify right side
   12,865.50x = 129,193,748.15
5. Step 5: Solve for x
   x = 129,193,748.15/12,865.50
6. Step 6: Final answer
   x = 10,041.88