Finding the Fourth Proportional to 52,386.96, 72,293.76 and 28,513.80

Step by Step Solution

1. Step 1: Write the proportion equation
   52,386.96 : 72,293.76 = 28,513.80 : x
2. Step 2: Convert to fraction form
   52,386.96/72,293.76 = 28,513.80/x
3. Step 3: Cross multiply
   52,386.96x = 72,293.76 × 28,513.80
4. Step 4: Simplify right side
   52,386.96x = 2,061,369,813.89
5. Step 5: Solve for x
   x = 2,061,369,813.89/52,386.96
6. Step 6: Final answer
   x = 39,348.91