Finding the Fourth Proportional to 52,447.38, 72,367.40 and 30,943.91

Step by Step Solution

1. Step 1: Write the proportion equation
   52,447.38 : 72,367.40 = 30,943.91 : x
2. Step 2: Convert to fraction form
   52,447.38/72,367.40 = 30,943.91/x
3. Step 3: Cross multiply
   52,447.38x = 72,367.40 × 30,943.91
4. Step 4: Simplify right side
   52,447.38x = 2,239,329,795.98
5. Step 5: Solve for x
   x = 2,239,329,795.98/52,447.38
6. Step 6: Final answer
   x = 42,696.70