Finding the Fourth Proportional to 12,995.04, 17,930.52 and 7,690.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,995.04 : 17,930.52 = 7,690.62 : x
2. Step 2: Convert to fraction form
   12,995.04/17,930.52 = 7,690.62/x
3. Step 3: Cross multiply
   12,995.04x = 17,930.52 × 7,690.62
4. Step 4: Simplify right side
   12,995.04x = 137,896,815.72
5. Step 5: Solve for x
   x = 137,896,815.72/12,995.04
6. Step 6: Final answer
   x = 10,611.50