Finding the Fourth Proportional to 9,319.92, 12,862.98 and 5,492.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,319.92 : 12,862.98 = 5,492.18 : x
2. Step 2: Convert to fraction form
   9,319.92/12,862.98 = 5,492.18/x
3. Step 3: Cross multiply
   9,319.92x = 12,862.98 × 5,492.18
4. Step 4: Simplify right side
   9,319.92x = 70,645,801.50
5. Step 5: Solve for x
   x = 70,645,801.50/9,319.92
6. Step 6: Final answer
   x = 7,580.09