Finding the Fourth Proportional to 52,784.46, 72,842.58 and 28,911.18

Step by Step Solution

1. Step 1: Write the proportion equation
   52,784.46 : 72,842.58 = 28,911.18 : x
2. Step 2: Convert to fraction form
   52,784.46/72,842.58 = 28,911.18/x
3. Step 3: Cross multiply
   52,784.46x = 72,842.58 × 28,911.18
4. Step 4: Simplify right side
   52,784.46x = 2,105,964,942.04
5. Step 5: Solve for x
   x = 2,105,964,942.04/52,784.46
6. Step 6: Final answer
   x = 39,897.44