Finding the Fourth Proportional to 105,633.48, 158,446.98 and 43,257

Step by Step Solution

1. Step 1: Write the proportion equation
   105,633.48 : 158,446.98 = 43,257 : x
2. Step 2: Convert to fraction form
   105,633.48/158,446.98 = 43,257/x
3. Step 3: Cross multiply
   105,633.48x = 158,446.98 × 43,257
4. Step 4: Simplify right side
   105,633.48x = 6,853,941,013.86
5. Step 5: Solve for x
   x = 6,853,941,013.86/105,633.48
6. Step 6: Final answer
   x = 64,884.17