Finding the Fourth Proportional to 52,799.37, 72,863.11 and 31,578.63

Step by Step Solution

1. Step 1: Write the proportion equation
   52,799.37 : 72,863.11 = 31,578.63 : x
2. Step 2: Convert to fraction form
   52,799.37/72,863.11 = 31,578.63/x
3. Step 3: Cross multiply
   52,799.37x = 72,863.11 × 31,578.63
4. Step 4: Simplify right side
   52,799.37x = 2,300,917,191.34
5. Step 5: Solve for x
   x = 2,300,917,191.34/52,799.37
6. Step 6: Final answer
   x = 43,578.50