Finding the Fourth Proportional to 142,764.72, 214,181.12 and 49,271.28

Step by Step Solution

1. Step 1: Write the proportion equation
   142,764.72 : 214,181.12 = 49,271.28 : x
2. Step 2: Convert to fraction form
   142,764.72/214,181.12 = 49,271.28/x
3. Step 3: Cross multiply
   142,764.72x = 214,181.12 × 49,271.28
4. Step 4: Simplify right side
   142,764.72x = 10,552,977,934.23
5. Step 5: Solve for x
   x = 10,552,977,934.23/142,764.72
6. Step 6: Final answer
   x = 73,918.67