Finding the Fourth Proportional to 142,826.56, 214,196.70 and 42,960.24

Step by Step Solution

1. Step 1: Write the proportion equation
   142,826.56 : 214,196.70 = 42,960.24 : x
2. Step 2: Convert to fraction form
   142,826.56/214,196.70 = 42,960.24/x
3. Step 3: Cross multiply
   142,826.56x = 214,196.70 × 42,960.24
4. Step 4: Simplify right side
   142,826.56x = 9,201,941,800.31
5. Step 5: Solve for x
   x = 9,201,941,800.31/142,826.56
6. Step 6: Final answer
   x = 64,427.39