Finding the Fourth Proportional to 95,157.37, 142,738.38 and 31,978.42

Step by Step Solution

1. Step 1: Write the proportion equation
   95,157.37 : 142,738.38 = 31,978.42 : x
2. Step 2: Convert to fraction form
   95,157.37/142,738.38 = 31,978.42/x
3. Step 3: Cross multiply
   95,157.37x = 142,738.38 × 31,978.42
4. Step 4: Simplify right side
   95,157.37x = 4,564,547,865.76
5. Step 5: Solve for x
   x = 4,564,547,865.76/95,157.37
6. Step 6: Final answer
   x = 47,968.41