Finding the Fourth Proportional to 52,111.28, 71,913.82 and 28,238

Step by Step Solution

1. Step 1: Write the proportion equation
   52,111.28 : 71,913.82 = 28,238 : x
2. Step 2: Convert to fraction form
   52,111.28/71,913.82 = 28,238/x
3. Step 3: Cross multiply
   52,111.28x = 71,913.82 × 28,238
4. Step 4: Simplify right side
   52,111.28x = 2,030,702,449.16
5. Step 5: Solve for x
   x = 2,030,702,449.16/52,111.28
6. Step 6: Final answer
   x = 38,968.58