Finding the Fourth Proportional to 43,859.72, 60,488.16 and 31,087.64

Step by Step Solution

1. Step 1: Write the proportion equation
   43,859.72 : 60,488.16 = 31,087.64 : x
2. Step 2: Convert to fraction form
   43,859.72/60,488.16 = 31,087.64/x
3. Step 3: Cross multiply
   43,859.72x = 60,488.16 × 31,087.64
4. Step 4: Simplify right side
   43,859.72x = 1,880,434,142.34
5. Step 5: Solve for x
   x = 1,880,434,142.34/43,859.72
6. Step 6: Final answer
   x = 42,873.83