Finding the Fourth Proportional to 12,989.95, 17,923.85 and 7,682.83

Step by Step Solution

1. Step 1: Write the proportion equation
   12,989.95 : 17,923.85 = 7,682.83 : x
2. Step 2: Convert to fraction form
   12,989.95/17,923.85 = 7,682.83/x
3. Step 3: Cross multiply
   12,989.95x = 17,923.85 × 7,682.83
4. Step 4: Simplify right side
   12,989.95x = 137,705,892.50
5. Step 5: Solve for x
   x = 137,705,892.50/12,989.95
6. Step 6: Final answer
   x = 10,600.96