Finding the Fourth Proportional to 105,793.32, 158,405.58 and 55,769.40

Step by Step Solution

1. Step 1: Write the proportion equation
   105,793.32 : 158,405.58 = 55,769.40 : x
2. Step 2: Convert to fraction form
   105,793.32/158,405.58 = 55,769.40/x
3. Step 3: Cross multiply
   105,793.32x = 158,405.58 × 55,769.40
4. Step 4: Simplify right side
   105,793.32x = 8,834,184,153.25
5. Step 5: Solve for x
   x = 8,834,184,153.25/105,793.32
6. Step 6: Final answer
   x = 83,504.18