Finding the Fourth Proportional to 142,524.96, 213,861.78 and 103,404.84

Step by Step Solution

1. Step 1: Write the proportion equation
   142,524.96 : 213,861.78 = 103,404.84 : x
2. Step 2: Convert to fraction form
   142,524.96/213,861.78 = 103,404.84/x
3. Step 3: Cross multiply
   142,524.96x = 213,861.78 × 103,404.84
4. Step 4: Simplify right side
   142,524.96x = 22,114,343,143.02
5. Step 5: Solve for x
   x = 22,114,343,143.02/142,524.96
6. Step 6: Final answer
   x = 155,161.20