Finding the Fourth Proportional to 52,806.21, 72,895.40 and 31,581.38

Step by Step Solution

1. Step 1: Write the proportion equation
   52,806.21 : 72,895.40 = 31,581.38 : x
2. Step 2: Convert to fraction form
   52,806.21/72,895.40 = 31,581.38/x
3. Step 3: Cross multiply
   52,806.21x = 72,895.40 × 31,581.38
4. Step 4: Simplify right side
   52,806.21x = 2,302,136,805.27
5. Step 5: Solve for x
   x = 2,302,136,805.27/52,806.21
6. Step 6: Final answer
   x = 43,595.95