Finding the Fourth Proportional to 16,980.67, 23,432.15 and 9,426.41

Step by Step Solution

1. Step 1: Write the proportion equation
   16,980.67 : 23,432.15 = 9,426.41 : x
2. Step 2: Convert to fraction form
   16,980.67/23,432.15 = 9,426.41/x
3. Step 3: Cross multiply
   16,980.67x = 23,432.15 × 9,426.41
4. Step 4: Simplify right side
   16,980.67x = 220,881,047.36
5. Step 5: Solve for x
   x = 220,881,047.36/16,980.67
6. Step 6: Final answer
   x = 13,007.79