Finding the Fourth Proportional to 142,655.22, 213,982.32 and 42,814.98

Step by Step Solution

1. Step 1: Write the proportion equation
   142,655.22 : 213,982.32 = 42,814.98 : x
2. Step 2: Convert to fraction form
   142,655.22/213,982.32 = 42,814.98/x
3. Step 3: Cross multiply
   142,655.22x = 213,982.32 × 42,814.98
4. Step 4: Simplify right side
   142,655.22x = 9,161,648,751.15
5. Step 5: Solve for x
   x = 9,161,648,751.15/142,655.22
6. Step 6: Final answer
   x = 64,222.32