Finding the Fourth Proportional to 105,341.72, 157,989.18 and 30,445.52

Step by Step Solution

1. Step 1: Write the proportion equation
   105,341.72 : 157,989.18 = 30,445.52 : x
2. Step 2: Convert to fraction form
   105,341.72/157,989.18 = 30,445.52/x
3. Step 3: Cross multiply
   105,341.72x = 157,989.18 × 30,445.52
4. Step 4: Simplify right side
   105,341.72x = 4,810,062,739.47
5. Step 5: Solve for x
   x = 4,810,062,739.47/105,341.72
6. Step 6: Final answer
   x = 45,661.52