Finding the Fourth Proportional to 142,626.42, 213,926.87 and 42,808.91

Step by Step Solution

1. Step 1: Write the proportion equation
   142,626.42 : 213,926.87 = 42,808.91 : x
2. Step 2: Convert to fraction form
   142,626.42/213,926.87 = 42,808.91/x
3. Step 3: Cross multiply
   142,626.42x = 213,926.87 × 42,808.91
4. Step 4: Simplify right side
   142,626.42x = 9,157,975,161.80
5. Step 5: Solve for x
   x = 9,157,975,161.80/142,626.42
6. Step 6: Final answer
   x = 64,209.53