Finding the Fourth Proportional to 20,884.72, 31,328.18 and 5,302.48

Step by Step Solution

1. Step 1: Write the proportion equation
   20,884.72 : 31,328.18 = 5,302.48 : x
2. Step 2: Convert to fraction form
   20,884.72/31,328.18 = 5,302.48/x
3. Step 3: Cross multiply
   20,884.72x = 31,328.18 × 5,302.48
4. Step 4: Simplify right side
   20,884.72x = 166,117,047.89
5. Step 5: Solve for x
   x = 166,117,047.89/20,884.72
6. Step 6: Final answer
   x = 7,954.00