Finding the Fourth Proportional to 105,973.58, 158,984.99 and 31,090.70

Step by Step Solution

1. Step 1: Write the proportion equation
   105,973.58 : 158,984.99 = 31,090.70 : x
2. Step 2: Convert to fraction form
   105,973.58/158,984.99 = 31,090.70/x
3. Step 3: Cross multiply
   105,973.58x = 158,984.99 × 31,090.70
4. Step 4: Simplify right side
   105,973.58x = 4,942,954,628.59
5. Step 5: Solve for x
   x = 4,942,954,628.59/105,973.58
6. Step 6: Final answer
   x = 46,643.27