Finding the Fourth Proportional to 6,990.94, 10,492.89 and 3,530.62

Step by Step Solution

1. Step 1: Write the proportion equation
   6,990.94 : 10,492.89 = 3,530.62 : x
2. Step 2: Convert to fraction form
   6,990.94/10,492.89 = 3,530.62/x
3. Step 3: Cross multiply
   6,990.94x = 10,492.89 × 3,530.62
4. Step 4: Simplify right side
   6,990.94x = 37,046,407.29
5. Step 5: Solve for x
   x = 37,046,407.29/6,990.94
6. Step 6: Final answer
   x = 5,299.20