Finding the Fourth Proportional to 52,218.80, 72,029.10 and 30,983

Step by Step Solution

1. Step 1: Write the proportion equation
   52,218.80 : 72,029.10 = 30,983 : x
2. Step 2: Convert to fraction form
   52,218.80/72,029.10 = 30,983/x
3. Step 3: Cross multiply
   52,218.80x = 72,029.10 × 30,983
4. Step 4: Simplify right side
   52,218.80x = 2,231,677,605.30
5. Step 5: Solve for x
   x = 2,231,677,605.30/52,218.80
6. Step 6: Final answer
   x = 42,737.05