Finding the Fourth Proportional to 142,797.34, 214,152.86 and 42,931.02

Step by Step Solution

1. Step 1: Write the proportion equation
   142,797.34 : 214,152.86 = 42,931.02 : x
2. Step 2: Convert to fraction form
   142,797.34/214,152.86 = 42,931.02/x
3. Step 3: Cross multiply
   142,797.34x = 214,152.86 × 42,931.02
4. Step 4: Simplify right side
   142,797.34x = 9,193,800,715.72
5. Step 5: Solve for x
   x = 9,193,800,715.72/142,797.34
6. Step 6: Final answer
   x = 64,383.56