Finding the Fourth Proportional to 52,031.50, 71,743.61 and 38,439.21

Step by Step Solution

1. Step 1: Write the proportion equation
   52,031.50 : 71,743.61 = 38,439.21 : x
2. Step 2: Convert to fraction form
   52,031.50/71,743.61 = 38,439.21/x
3. Step 3: Cross multiply
   52,031.50x = 71,743.61 × 38,439.21
4. Step 4: Simplify right side
   52,031.50x = 2,757,767,373.86
5. Step 5: Solve for x
   x = 2,757,767,373.86/52,031.50
6. Step 6: Final answer
   x = 53,001.89