Finding the Fourth Proportional to 51,385.39, 70,923.27 and 31,238

Step by Step Solution

1. Step 1: Write the proportion equation
   51,385.39 : 70,923.27 = 31,238 : x
2. Step 2: Convert to fraction form
   51,385.39/70,923.27 = 31,238/x
3. Step 3: Cross multiply
   51,385.39x = 70,923.27 × 31,238
4. Step 4: Simplify right side
   51,385.39x = 2,215,501,108.26
5. Step 5: Solve for x
   x = 2,215,501,108.26/51,385.39
6. Step 6: Final answer
   x = 43,115.39