Finding the Fourth Proportional to 142,613.10, 213,903.18 and 37,440.30

Step by Step Solution

1. Step 1: Write the proportion equation
   142,613.10 : 213,903.18 = 37,440.30 : x
2. Step 2: Convert to fraction form
   142,613.10/213,903.18 = 37,440.30/x
3. Step 3: Cross multiply
   142,613.10x = 213,903.18 × 37,440.30
4. Step 4: Simplify right side
   142,613.10x = 8,008,599,230.15
5. Step 5: Solve for x
   x = 8,008,599,230.15/142,613.10
6. Step 6: Final answer
   x = 56,156.13