Finding the Fourth Proportional to 142,685.37, 214,060.85 and 42,847.45

Step by Step Solution

1. Step 1: Write the proportion equation
   142,685.37 : 214,060.85 = 42,847.45 : x
2. Step 2: Convert to fraction form
   142,685.37/214,060.85 = 42,847.45/x
3. Step 3: Cross multiply
   142,685.37x = 214,060.85 × 42,847.45
4. Step 4: Simplify right side
   142,685.37x = 9,171,961,139.30
5. Step 5: Solve for x
   x = 9,171,961,139.30/142,685.37
6. Step 6: Final answer
   x = 64,281.02