Finding the Fourth Proportional to 49,721.27, 68,618.42 and 28,503.72

Step by Step Solution

1. Step 1: Write the proportion equation
   49,721.27 : 68,618.42 = 28,503.72 : x
2. Step 2: Convert to fraction form
   49,721.27/68,618.42 = 28,503.72/x
3. Step 3: Cross multiply
   49,721.27x = 68,618.42 × 28,503.72
4. Step 4: Simplify right side
   49,721.27x = 1,955,880,088.00
5. Step 5: Solve for x
   x = 1,955,880,088.00/49,721.27
6. Step 6: Final answer
   x = 39,336.89