Finding the Fourth Proportional to 52,229.34, 72,076.65 and 28,356.12

Step by Step Solution

1. Step 1: Write the proportion equation
   52,229.34 : 72,076.65 = 28,356.12 : x
2. Step 2: Convert to fraction form
   52,229.34/72,076.65 = 28,356.12/x
3. Step 3: Cross multiply
   52,229.34x = 72,076.65 × 28,356.12
4. Step 4: Simplify right side
   52,229.34x = 2,043,814,136.60
5. Step 5: Solve for x
   x = 2,043,814,136.60/52,229.34
6. Step 6: Final answer
   x = 39,131.53