Finding the Fourth Proportional to 52,270.47, 72,139.42 and 31,049.82

Step by Step Solution

1. Step 1: Write the proportion equation
   52,270.47 : 72,139.42 = 31,049.82 : x
2. Step 2: Convert to fraction form
   52,270.47/72,139.42 = 31,049.82/x
3. Step 3: Cross multiply
   52,270.47x = 72,139.42 × 31,049.82
4. Step 4: Simplify right side
   52,270.47x = 2,239,916,005.90
5. Step 5: Solve for x
   x = 2,239,916,005.90/52,270.47
6. Step 6: Final answer
   x = 42,852.42