Finding the Fourth Proportional to 13,077.16, 18,046.83 and 7,109.23

Step by Step Solution

1. Step 1: Write the proportion equation
   13,077.16 : 18,046.83 = 7,109.23 : x
2. Step 2: Convert to fraction form
   13,077.16/18,046.83 = 7,109.23/x
3. Step 3: Cross multiply
   13,077.16x = 18,046.83 × 7,109.23
4. Step 4: Simplify right side
   13,077.16x = 128,298,975.01
5. Step 5: Solve for x
   x = 128,298,975.01/13,077.16
6. Step 6: Final answer
   x = 9,810.92