Finding the Fourth Proportional to 55,287.82, 76,299.15 and 31,415.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,287.82 : 76,299.15 = 31,415.50 : x
2. Step 2: Convert to fraction form
   55,287.82/76,299.15 = 31,415.50/x
3. Step 3: Cross multiply
   55,287.82x = 76,299.15 × 31,415.50
4. Step 4: Simplify right side
   55,287.82x = 2,396,975,946.83
5. Step 5: Solve for x
   x = 2,396,975,946.83/55,287.82
6. Step 6: Final answer
   x = 43,354.50