Finding the Fourth Proportional to 13,084.61, 18,056.24 and 7,116.27

Step by Step Solution

1. Step 1: Write the proportion equation
   13,084.61 : 18,056.24 = 7,116.27 : x
2. Step 2: Convert to fraction form
   13,084.61/18,056.24 = 7,116.27/x
3. Step 3: Cross multiply
   13,084.61x = 18,056.24 × 7,116.27
4. Step 4: Simplify right side
   13,084.61x = 128,493,043.44
5. Step 5: Solve for x
   x = 128,493,043.44/13,084.61
6. Step 6: Final answer
   x = 9,820.17