Finding the Fourth Proportional to 43,871.76, 60,570.72 and 30,438.72

Step by Step Solution

1. Step 1: Write the proportion equation
   43,871.76 : 60,570.72 = 30,438.72 : x
2. Step 2: Convert to fraction form
   43,871.76/60,570.72 = 30,438.72/x
3. Step 3: Cross multiply
   43,871.76x = 60,570.72 × 30,438.72
4. Step 4: Simplify right side
   43,871.76x = 1,843,695,186.28
5. Step 5: Solve for x
   x = 1,843,695,186.28/43,871.76
6. Step 6: Final answer
   x = 42,024.65