Finding the Fourth Proportional to 13,085.34, 18,058.24 and 7,497.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,085.34 : 18,058.24 = 7,497.42 : x
2. Step 2: Convert to fraction form
   13,085.34/18,058.24 = 7,497.42/x
3. Step 3: Cross multiply
   13,085.34x = 18,058.24 × 7,497.42
4. Step 4: Simplify right side
   13,085.34x = 135,390,209.74
5. Step 5: Solve for x
   x = 135,390,209.74/13,085.34
6. Step 6: Final answer
   x = 10,346.71