Finding the Fourth Proportional to 38,443.41, 53,004.78 and 31,613.57

Step by Step Solution

1. Step 1: Write the proportion equation
   38,443.41 : 53,004.78 = 31,613.57 : x
2. Step 2: Convert to fraction form
   38,443.41/53,004.78 = 31,613.57/x
3. Step 3: Cross multiply
   38,443.41x = 53,004.78 × 31,613.57
4. Step 4: Simplify right side
   38,443.41x = 1,675,670,322.86
5. Step 5: Solve for x
   x = 1,675,670,322.86/38,443.41
6. Step 6: Final answer
   x = 43,587.97