Finding the Fourth Proportional to 52,800.89, 72,866.05 and 28,925.98

Step by Step Solution

1. Step 1: Write the proportion equation
   52,800.89 : 72,866.05 = 28,925.98 : x
2. Step 2: Convert to fraction form
   52,800.89/72,866.05 = 28,925.98/x
3. Step 3: Cross multiply
   52,800.89x = 72,866.05 × 28,925.98
4. Step 4: Simplify right side
   52,800.89x = 2,107,721,650.50
5. Step 5: Solve for x
   x = 2,107,721,650.50/52,800.89
6. Step 6: Final answer
   x = 39,918.30