Finding the Fourth Proportional to 12,766.90, 17,620.43 and 7,460.69

Step by Step Solution

1. Step 1: Write the proportion equation
   12,766.90 : 17,620.43 = 7,460.69 : x
2. Step 2: Convert to fraction form
   12,766.90/17,620.43 = 7,460.69/x
3. Step 3: Cross multiply
   12,766.90x = 17,620.43 × 7,460.69
4. Step 4: Simplify right side
   12,766.90x = 131,460,565.90
5. Step 5: Solve for x
   x = 131,460,565.90/12,766.90
6. Step 6: Final answer
   x = 10,296.98