Finding the Fourth Proportional to 13,047.42, 18,005.32 and 7,079.06

Step by Step Solution

1. Step 1: Write the proportion equation
   13,047.42 : 18,005.32 = 7,079.06 : x
2. Step 2: Convert to fraction form
   13,047.42/18,005.32 = 7,079.06/x
3. Step 3: Cross multiply
   13,047.42x = 18,005.32 × 7,079.06
4. Step 4: Simplify right side
   13,047.42x = 127,460,740.60
5. Step 5: Solve for x
   x = 127,460,740.60/13,047.42
6. Step 6: Final answer
   x = 9,769.04