Finding the Fourth Proportional to 20,613.63, 30,915.59 and 7,468.95

Step by Step Solution

1. Step 1: Write the proportion equation
   20,613.63 : 30,915.59 = 7,468.95 : x
2. Step 2: Convert to fraction form
   20,613.63/30,915.59 = 7,468.95/x
3. Step 3: Cross multiply
   20,613.63x = 30,915.59 × 7,468.95
4. Step 4: Simplify right side
   20,613.63x = 230,906,958.59
5. Step 5: Solve for x
   x = 230,906,958.59/20,613.63
6. Step 6: Final answer
   x = 11,201.66