Finding the Fourth Proportional to 55,447.50, 76,517.46 and 31,574.18

Step by Step Solution

1. Step 1: Write the proportion equation
   55,447.50 : 76,517.46 = 31,574.18 : x
2. Step 2: Convert to fraction form
   55,447.50/76,517.46 = 31,574.18/x
3. Step 3: Cross multiply
   55,447.50x = 76,517.46 × 31,574.18
4. Step 4: Simplify right side
   55,447.50x = 2,415,976,055.18
5. Step 5: Solve for x
   x = 2,415,976,055.18/55,447.50
6. Step 6: Final answer
   x = 43,572.32