Finding the Fourth Proportional to 105,543.84, 158,354.46 and 55,621.92

Step by Step Solution

1. Step 1: Write the proportion equation
   105,543.84 : 158,354.46 = 55,621.92 : x
2. Step 2: Convert to fraction form
   105,543.84/158,354.46 = 55,621.92/x
3. Step 3: Cross multiply
   105,543.84x = 158,354.46 × 55,621.92
4. Step 4: Simplify right side
   105,543.84x = 8,807,979,105.76
5. Step 5: Solve for x
   x = 8,807,979,105.76/105,543.84
6. Step 6: Final answer
   x = 83,453.28