Finding the Fourth Proportional to 142,533.78, 213,798.43 and 49,040.34

Step by Step Solution

1. Step 1: Write the proportion equation
   142,533.78 : 213,798.43 = 49,040.34 : x
2. Step 2: Convert to fraction form
   142,533.78/213,798.43 = 49,040.34/x
3. Step 3: Cross multiply
   142,533.78x = 213,798.43 × 49,040.34
4. Step 4: Simplify right side
   142,533.78x = 10,484,747,698.67
5. Step 5: Solve for x
   x = 10,484,747,698.67/142,533.78
6. Step 6: Final answer
   x = 73,559.74