Finding the Fourth Proportional to 56,982.38, 78,632.22 and 31,488.16

Step by Step Solution

1. Step 1: Write the proportion equation
   56,982.38 : 78,632.22 = 31,488.16 : x
2. Step 2: Convert to fraction form
   56,982.38/78,632.22 = 31,488.16/x
3. Step 3: Cross multiply
   56,982.38x = 78,632.22 × 31,488.16
4. Step 4: Simplify right side
   56,982.38x = 2,475,983,924.52
5. Step 5: Solve for x
   x = 2,475,983,924.52/56,982.38
6. Step 6: Final answer
   x = 43,451.75