Finding the Fourth Proportional to 9,123.68, 13,684.80 and 3,200.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,123.68 : 13,684.80 = 3,200.16 : x
2. Step 2: Convert to fraction form
   9,123.68/13,684.80 = 3,200.16/x
3. Step 3: Cross multiply
   9,123.68x = 13,684.80 × 3,200.16
4. Step 4: Simplify right side
   9,123.68x = 43,793,549.57
5. Step 5: Solve for x
   x = 43,793,549.57/9,123.68
6. Step 6: Final answer
   x = 4,799.99