Finding the Fourth Proportional to 52,641.92, 72,644.16 and 28,768.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,641.92 : 72,644.16 = 28,768.52 : x
2. Step 2: Convert to fraction form
   52,641.92/72,644.16 = 28,768.52/x
3. Step 3: Cross multiply
   52,641.92x = 72,644.16 × 28,768.52
4. Step 4: Simplify right side
   52,641.92x = 2,089,864,969.84
5. Step 5: Solve for x
   x = 2,089,864,969.84/52,641.92
6. Step 6: Final answer
   x = 39,699.63