Finding the Fourth Proportional to 142,688.34, 214,054.11 and 49,171.86

Step by Step Solution

1. Step 1: Write the proportion equation
   142,688.34 : 214,054.11 = 49,171.86 : x
2. Step 2: Convert to fraction form
   142,688.34/214,054.11 = 49,171.86/x
3. Step 3: Cross multiply
   142,688.34x = 214,054.11 × 49,171.86
4. Step 4: Simplify right side
   142,688.34x = 10,525,438,729.34
5. Step 5: Solve for x
   x = 10,525,438,729.34/142,688.34
6. Step 6: Final answer
   x = 73,765.23