Finding the Fourth Proportional to 13,042.72, 17,998.64 and 7,074.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,042.72 : 17,998.64 = 7,074.24 : x
2. Step 2: Convert to fraction form
   13,042.72/17,998.64 = 7,074.24/x
3. Step 3: Cross multiply
   13,042.72x = 17,998.64 × 7,074.24
4. Step 4: Simplify right side
   13,042.72x = 127,326,699.03
5. Step 5: Solve for x
   x = 127,326,699.03/13,042.72
6. Step 6: Final answer
   x = 9,762.28