Finding the Fourth Proportional to 105,112.48, 157,695.42 and 30,231.04

Step by Step Solution

1. Step 1: Write the proportion equation
   105,112.48 : 157,695.42 = 30,231.04 : x
2. Step 2: Convert to fraction form
   105,112.48/157,695.42 = 30,231.04/x
3. Step 3: Cross multiply
   105,112.48x = 157,695.42 × 30,231.04
4. Step 4: Simplify right side
   105,112.48x = 4,767,296,549.84
5. Step 5: Solve for x
   x = 4,767,296,549.84/105,112.48
6. Step 6: Final answer
   x = 45,354.24