Finding the Fourth Proportional to 13,084.50, 18,056.28 and 7,116.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,084.50 : 18,056.28 = 7,116.04 : x
2. Step 2: Convert to fraction form
   13,084.50/18,056.28 = 7,116.04/x
3. Step 3: Cross multiply
   13,084.50x = 18,056.28 × 7,116.04
4. Step 4: Simplify right side
   13,084.50x = 128,489,210.73
5. Step 5: Solve for x
   x = 128,489,210.73/13,084.50
6. Step 6: Final answer
   x = 9,819.96