Finding the Fourth Proportional to 13,111.48, 18,094.26 and 7,143.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,111.48 : 18,094.26 = 7,143.34 : x
2. Step 2: Convert to fraction form
   13,111.48/18,094.26 = 7,143.34/x
3. Step 3: Cross multiply
   13,111.48x = 18,094.26 × 7,143.34
4. Step 4: Simplify right side
   13,111.48x = 129,253,451.23
5. Step 5: Solve for x
   x = 129,253,451.23/13,111.48
6. Step 6: Final answer
   x = 9,858.04