Finding the Fourth Proportional to 45,371.94, 62,613.45 and 31,200.18

Step by Step Solution

1. Step 1: Write the proportion equation
   45,371.94 : 62,613.45 = 31,200.18 : x
2. Step 2: Convert to fraction form
   45,371.94/62,613.45 = 31,200.18/x
3. Step 3: Cross multiply
   45,371.94x = 62,613.45 × 31,200.18
4. Step 4: Simplify right side
   45,371.94x = 1,953,550,910.42
5. Step 5: Solve for x
   x = 1,953,550,910.42/45,371.94
6. Step 6: Final answer
   x = 43,056.37