Finding the Fourth Proportional to 142,533.12, 213,834.24 and 42,693.12

Step by Step Solution

1. Step 1: Write the proportion equation
   142,533.12 : 213,834.24 = 42,693.12 : x
2. Step 2: Convert to fraction form
   142,533.12/213,834.24 = 42,693.12/x
3. Step 3: Cross multiply
   142,533.12x = 213,834.24 × 42,693.12
4. Step 4: Simplify right side
   142,533.12x = 9,129,250,868.43
5. Step 5: Solve for x
   x = 9,129,250,868.43/142,533.12
6. Step 6: Final answer
   x = 64,050.03