Finding the Fourth Proportional to 93,256.48, 139,856.90 and 34,078.42

Step by Step Solution

1. Step 1: Write the proportion equation
   93,256.48 : 139,856.90 = 34,078.42 : x
2. Step 2: Convert to fraction form
   93,256.48/139,856.90 = 34,078.42/x
3. Step 3: Cross multiply
   93,256.48x = 139,856.90 × 34,078.42
4. Step 4: Simplify right side
   93,256.48x = 4,766,102,178.10
5. Step 5: Solve for x
   x = 4,766,102,178.10/93,256.48
6. Step 6: Final answer
   x = 51,107.46