Finding the Fourth Proportional to 55,162.64, 76,138.04 and 31,303.69

Step by Step Solution

1. Step 1: Write the proportion equation
   55,162.64 : 76,138.04 = 31,303.69 : x
2. Step 2: Convert to fraction form
   55,162.64/76,138.04 = 31,303.69/x
3. Step 3: Cross multiply
   55,162.64x = 76,138.04 × 31,303.69
4. Step 4: Simplify right side
   55,162.64x = 2,383,401,489.28
5. Step 5: Solve for x
   x = 2,383,401,489.28/55,162.64
6. Step 6: Final answer
   x = 43,206.80