Finding the Fourth Proportional to 13,085.16, 18,057.98 and 7,497.24

Step by Step Solution

1. Step 1: Write the proportion equation
   13,085.16 : 18,057.98 = 7,497.24 : x
2. Step 2: Convert to fraction form
   13,085.16/18,057.98 = 7,497.24/x
3. Step 3: Cross multiply
   13,085.16x = 18,057.98 × 7,497.24
4. Step 4: Simplify right side
   13,085.16x = 135,385,009.98
5. Step 5: Solve for x
   x = 135,385,009.98/13,085.16
6. Step 6: Final answer
   x = 10,346.45