Finding the Fourth Proportional to 52,481.76, 72,423.84 and 28,608

Step by Step Solution

1. Step 1: Write the proportion equation
   52,481.76 : 72,423.84 = 28,608 : x
2. Step 2: Convert to fraction form
   52,481.76/72,423.84 = 28,608/x
3. Step 3: Cross multiply
   52,481.76x = 72,423.84 × 28,608
4. Step 4: Simplify right side
   52,481.76x = 2,071,901,214.72
5. Step 5: Solve for x
   x = 2,071,901,214.72/52,481.76
6. Step 6: Final answer
   x = 39,478.50