Finding the Fourth Proportional to 105,650.48, 158,474.52 and 25,688.90

Step by Step Solution

1. Step 1: Write the proportion equation
   105,650.48 : 158,474.52 = 25,688.90 : x
2. Step 2: Convert to fraction form
   105,650.48/158,474.52 = 25,688.90/x
3. Step 3: Cross multiply
   105,650.48x = 158,474.52 × 25,688.90
4. Step 4: Simplify right side
   105,650.48x = 4,071,036,096.83
5. Step 5: Solve for x
   x = 4,071,036,096.83/105,650.48
6. Step 6: Final answer
   x = 38,533.06