Finding the Fourth Proportional to 7,269.31, 10,840.15 and 7,206.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,269.31 : 10,840.15 = 7,206.76 : x
2. Step 2: Convert to fraction form
   7,269.31/10,840.15 = 7,206.76/x
3. Step 3: Cross multiply
   7,269.31x = 10,840.15 × 7,206.76
4. Step 4: Simplify right side
   7,269.31x = 78,122,359.41
5. Step 5: Solve for x
   x = 78,122,359.41/7,269.31
6. Step 6: Final answer
   x = 10,746.87