Finding the Fourth Proportional to 55,200.96, 76,179.42 and 31,328.64

Step by Step Solution

1. Step 1: Write the proportion equation
   55,200.96 : 76,179.42 = 31,328.64 : x
2. Step 2: Convert to fraction form
   55,200.96/76,179.42 = 31,328.64/x
3. Step 3: Cross multiply
   55,200.96x = 76,179.42 × 31,328.64
4. Step 4: Simplify right side
   55,200.96x = 2,386,597,624.59
5. Step 5: Solve for x
   x = 2,386,597,624.59/55,200.96
6. Step 6: Final answer
   x = 43,234.71