Finding the Fourth Proportional to 21,302.08, 31,948.72 and 5,716

Step by Step Solution

1. Step 1: Write the proportion equation
   21,302.08 : 31,948.72 = 5,716 : x
2. Step 2: Convert to fraction form
   21,302.08/31,948.72 = 5,716/x
3. Step 3: Cross multiply
   21,302.08x = 31,948.72 × 5,716
4. Step 4: Simplify right side
   21,302.08x = 182,618,883.52
5. Step 5: Solve for x
   x = 182,618,883.52/21,302.08
6. Step 6: Final answer
   x = 8,572.82