Finding the Fourth Proportional to 12,328.51, 18,492.90 and 3,563.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,328.51 : 18,492.90 = 3,563.50 : x
2. Step 2: Convert to fraction form
   12,328.51/18,492.90 = 3,563.50/x
3. Step 3: Cross multiply
   12,328.51x = 18,492.90 × 3,563.50
4. Step 4: Simplify right side
   12,328.51x = 65,899,449.15
5. Step 5: Solve for x
   x = 65,899,449.15/12,328.51
6. Step 6: Final answer
   x = 5,345.29