Finding the Fourth Proportional to 142,768.17, 214,182.23 and 54,019.71

Step by Step Solution

1. Step 1: Write the proportion equation
   142,768.17 : 214,182.23 = 54,019.71 : x
2. Step 2: Convert to fraction form
   142,768.17/214,182.23 = 54,019.71/x
3. Step 3: Cross multiply
   142,768.17x = 214,182.23 × 54,019.71
4. Step 4: Simplify right side
   142,768.17x = 11,570,061,681.65
5. Step 5: Solve for x
   x = 11,570,061,681.65/142,768.17
6. Step 6: Final answer
   x = 81,040.90