Finding the Fourth Proportional to 142,484.05, 213,768.87 and 42,647.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,484.05 : 213,768.87 = 42,647.50 : x
2. Step 2: Convert to fraction form
   142,484.05/213,768.87 = 42,647.50/x
3. Step 3: Cross multiply
   142,484.05x = 213,768.87 × 42,647.50
4. Step 4: Simplify right side
   142,484.05x = 9,116,707,883.33
5. Step 5: Solve for x
   x = 9,116,707,883.33/142,484.05
6. Step 6: Final answer
   x = 63,984.06