Finding the Fourth Proportional to 142,650.60, 213,944.94 and 42,784.02

Step by Step Solution

1. Step 1: Write the proportion equation
   142,650.60 : 213,944.94 = 42,784.02 : x
2. Step 2: Convert to fraction form
   142,650.60/213,944.94 = 42,784.02/x
3. Step 3: Cross multiply
   142,650.60x = 213,944.94 × 42,784.02
4. Step 4: Simplify right side
   142,650.60x = 9,153,424,591.86
5. Step 5: Solve for x
   x = 9,153,424,591.86/142,650.60
6. Step 6: Final answer
   x = 64,166.74