Finding the Fourth Proportional to 105,973.08, 158,984.24 and 31,090.20

Step by Step Solution

1. Step 1: Write the proportion equation
   105,973.08 : 158,984.24 = 31,090.20 : x
2. Step 2: Convert to fraction form
   105,973.08/158,984.24 = 31,090.20/x
3. Step 3: Cross multiply
   105,973.08x = 158,984.24 × 31,090.20
4. Step 4: Simplify right side
   105,973.08x = 4,942,851,818.45
5. Step 5: Solve for x
   x = 4,942,851,818.45/105,973.08
6. Step 6: Final answer
   x = 46,642.52