Finding the Fourth Proportional to 10,980.35, 16,432.25 and 8,982.89

Step by Step Solution

1. Step 1: Write the proportion equation
   10,980.35 : 16,432.25 = 8,982.89 : x
2. Step 2: Convert to fraction form
   10,980.35/16,432.25 = 8,982.89/x
3. Step 3: Cross multiply
   10,980.35x = 16,432.25 × 8,982.89
4. Step 4: Simplify right side
   10,980.35x = 147,609,094.20
5. Step 5: Solve for x
   x = 147,609,094.20/10,980.35
6. Step 6: Final answer
   x = 13,443.02