Finding the Fourth Proportional to 50,810.28, 70,152.40 and 31,719.12

Step by Step Solution

1. Step 1: Write the proportion equation
   50,810.28 : 70,152.40 = 31,719.12 : x
2. Step 2: Convert to fraction form
   50,810.28/70,152.40 = 31,719.12/x
3. Step 3: Cross multiply
   50,810.28x = 70,152.40 × 31,719.12
4. Step 4: Simplify right side
   50,810.28x = 2,225,172,393.89
5. Step 5: Solve for x
   x = 2,225,172,393.89/50,810.28
6. Step 6: Final answer
   x = 43,793.74