Finding the Fourth Proportional to 51,253.39, 70,737.47 and 31,106.38

Step by Step Solution

1. Step 1: Write the proportion equation
   51,253.39 : 70,737.47 = 31,106.38 : x
2. Step 2: Convert to fraction form
   51,253.39/70,737.47 = 31,106.38/x
3. Step 3: Cross multiply
   51,253.39x = 70,737.47 × 31,106.38
4. Step 4: Simplify right side
   51,253.39x = 2,200,386,538.96
5. Step 5: Solve for x
   x = 2,200,386,538.96/51,253.39
6. Step 6: Final answer
   x = 42,931.53