Finding the Fourth Proportional to 52,783.38, 72,842.04 and 28,909.62

Step by Step Solution

1. Step 1: Write the proportion equation
   52,783.38 : 72,842.04 = 28,909.62 : x
2. Step 2: Convert to fraction form
   52,783.38/72,842.04 = 28,909.62/x
3. Step 3: Cross multiply
   52,783.38x = 72,842.04 × 28,909.62
4. Step 4: Simplify right side
   52,783.38x = 2,105,835,696.42
5. Step 5: Solve for x
   x = 2,105,835,696.42/52,783.38
6. Step 6: Final answer
   x = 39,895.81