Finding the Fourth Proportional to 52,602.48, 72,588.69 and 28,724.49

Step by Step Solution

1. Step 1: Write the proportion equation
   52,602.48 : 72,588.69 = 28,724.49 : x
2. Step 2: Convert to fraction form
   52,602.48/72,588.69 = 28,724.49/x
3. Step 3: Cross multiply
   52,602.48x = 72,588.69 × 28,724.49
4. Step 4: Simplify right side
   52,602.48x = 2,085,073,100.02
5. Step 5: Solve for x
   x = 2,085,073,100.02/52,602.48
6. Step 6: Final answer
   x = 39,638.30