Finding the Fourth Proportional to 105,543.98, 158,304.89 and 55,603.97

Step by Step Solution

1. Step 1: Write the proportion equation
   105,543.98 : 158,304.89 = 55,603.97 : x
2. Step 2: Convert to fraction form
   105,543.98/158,304.89 = 55,603.97/x
3. Step 3: Cross multiply
   105,543.98x = 158,304.89 × 55,603.97
4. Step 4: Simplify right side
   105,543.98x = 8,802,379,701.90
5. Step 5: Solve for x
   x = 8,802,379,701.90/105,543.98
6. Step 6: Final answer
   x = 83,400.12