Finding the Fourth Proportional to 13,076.64, 18,045.59 and 7,108.16

Step by Step Solution

1. Step 1: Write the proportion equation
   13,076.64 : 18,045.59 = 7,108.16 : x
2. Step 2: Convert to fraction form
   13,076.64/18,045.59 = 7,108.16/x
3. Step 3: Cross multiply
   13,076.64x = 18,045.59 × 7,108.16
4. Step 4: Simplify right side
   13,076.64x = 128,270,815.25
5. Step 5: Solve for x
   x = 128,270,815.25/13,076.64
6. Step 6: Final answer
   x = 9,809.16