Finding the Fourth Proportional to 13,081.50, 18,052.74 and 7,492.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,081.50 : 18,052.74 = 7,492.50 : x
2. Step 2: Convert to fraction form
   13,081.50/18,052.74 = 7,492.50/x
3. Step 3: Cross multiply
   13,081.50x = 18,052.74 × 7,492.50
4. Step 4: Simplify right side
   13,081.50x = 135,260,154.45
5. Step 5: Solve for x
   x = 135,260,154.45/13,081.50
6. Step 6: Final answer
   x = 10,339.80