Finding the Fourth Proportional to 52,236.72, 72,086.60 and 28,364

Step by Step Solution

1. Step 1: Write the proportion equation
   52,236.72 : 72,086.60 = 28,364 : x
2. Step 2: Convert to fraction form
   52,236.72/72,086.60 = 28,364/x
3. Step 3: Cross multiply
   52,236.72x = 72,086.60 × 28,364
4. Step 4: Simplify right side
   52,236.72x = 2,044,664,322.40
5. Step 5: Solve for x
   x = 2,044,664,322.40/52,236.72
6. Step 6: Final answer
   x = 39,142.28