Finding the Fourth Proportional to 13,109.04, 18,090.56 and 7,804.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,109.04 : 18,090.56 = 7,804.04 : x
2. Step 2: Convert to fraction form
   13,109.04/18,090.56 = 7,804.04/x
3. Step 3: Cross multiply
   13,109.04x = 18,090.56 × 7,804.04
4. Step 4: Simplify right side
   13,109.04x = 141,179,453.86
5. Step 5: Solve for x
   x = 141,179,453.86/13,109.04
6. Step 6: Final answer
   x = 10,769.63