Finding the Fourth Proportional to 12,290.52, 18,432.18 and 3,523.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,290.52 : 18,432.18 = 3,523.08 : x
2. Step 2: Convert to fraction form
   12,290.52/18,432.18 = 3,523.08/x
3. Step 3: Cross multiply
   12,290.52x = 18,432.18 × 3,523.08
4. Step 4: Simplify right side
   12,290.52x = 64,938,044.71
5. Step 5: Solve for x
   x = 64,938,044.71/12,290.52
6. Step 6: Final answer
   x = 5,283.59