Finding the Fourth Proportional to 49,984.72, 68,970.24 and 30,875.20

Step by Step Solution

1. Step 1: Write the proportion equation
   49,984.72 : 68,970.24 = 30,875.20 : x
2. Step 2: Convert to fraction form
   49,984.72/68,970.24 = 30,875.20/x
3. Step 3: Cross multiply
   49,984.72x = 68,970.24 × 30,875.20
4. Step 4: Simplify right side
   49,984.72x = 2,129,469,954.05
5. Step 5: Solve for x
   x = 2,129,469,954.05/49,984.72
6. Step 6: Final answer
   x = 42,602.42