Finding the Fourth Proportional to 45,613.76, 62,915.31 and 31,274.89

Step by Step Solution

1. Step 1: Write the proportion equation
   45,613.76 : 62,915.31 = 31,274.89 : x
2. Step 2: Convert to fraction form
   45,613.76/62,915.31 = 31,274.89/x
3. Step 3: Cross multiply
   45,613.76x = 62,915.31 × 31,274.89
4. Step 4: Simplify right side
   45,613.76x = 1,967,669,399.57
5. Step 5: Solve for x
   x = 1,967,669,399.57/45,613.76
6. Step 6: Final answer
   x = 43,137.63