Finding the Fourth Proportional to 50,806.77, 70,147.56 and 31,715.61

Step by Step Solution

1. Step 1: Write the proportion equation
   50,806.77 : 70,147.56 = 31,715.61 : x
2. Step 2: Convert to fraction form
   50,806.77/70,147.56 = 31,715.61/x
3. Step 3: Cross multiply
   50,806.77x = 70,147.56 × 31,715.61
4. Step 4: Simplify right side
   50,806.77x = 2,224,772,655.41
5. Step 5: Solve for x
   x = 2,224,772,655.41/50,806.77
6. Step 6: Final answer
   x = 43,788.90