Finding the Fourth Proportional to 105,371.25, 158,056.92 and 31,499.25

Step by Step Solution

1. Step 1: Write the proportion equation
   105,371.25 : 158,056.92 = 31,499.25 : x
2. Step 2: Convert to fraction form
   105,371.25/158,056.92 = 31,499.25/x
3. Step 3: Cross multiply
   105,371.25x = 158,056.92 × 31,499.25
4. Step 4: Simplify right side
   105,371.25x = 4,978,674,437.31
5. Step 5: Solve for x
   x = 4,978,674,437.31/105,371.25
6. Step 6: Final answer
   x = 47,248.89