Finding the Fourth Proportional to 52,537.30, 72,498.81 and 28,663.78

Step by Step Solution

1. Step 1: Write the proportion equation
   52,537.30 : 72,498.81 = 28,663.78 : x
2. Step 2: Convert to fraction form
   52,537.30/72,498.81 = 28,663.78/x
3. Step 3: Cross multiply
   52,537.30x = 72,498.81 × 28,663.78
4. Step 4: Simplify right side
   52,537.30x = 2,078,089,940.10
5. Step 5: Solve for x
   x = 2,078,089,940.10/52,537.30
6. Step 6: Final answer
   x = 39,554.56