Finding the Fourth Proportional to 49,875, 68,821.32 and 30,503.64

Step by Step Solution

1. Step 1: Write the proportion equation
   49,875 : 68,821.32 = 30,503.64 : x
2. Step 2: Convert to fraction form
   49,875/68,821.32 = 30,503.64/x
3. Step 3: Cross multiply
   49,875x = 68,821.32 × 30,503.64
4. Step 4: Simplify right side
   49,875x = 2,099,300,769.60
5. Step 5: Solve for x
   x = 2,099,300,769.60/49,875
6. Step 6: Final answer
   x = 42,091.24