Finding the Fourth Proportional to 52,783.65, 72,842.49 and 28,910.33

Step by Step Solution

1. Step 1: Write the proportion equation
   52,783.65 : 72,842.49 = 28,910.33 : x
2. Step 2: Convert to fraction form
   52,783.65/72,842.49 = 28,910.33/x
3. Step 3: Cross multiply
   52,783.65x = 72,842.49 × 28,910.33
4. Step 4: Simplify right side
   52,783.65x = 2,105,900,742.61
5. Step 5: Solve for x
   x = 2,105,900,742.61/52,783.65
6. Step 6: Final answer
   x = 39,896.84