Finding the Fourth Proportional to 52,234.61, 72,081.78 and 28,360.77

Step by Step Solution

1. Step 1: Write the proportion equation
   52,234.61 : 72,081.78 = 28,360.77 : x
2. Step 2: Convert to fraction form
   52,234.61/72,081.78 = 28,360.77/x
3. Step 3: Cross multiply
   52,234.61x = 72,081.78 × 28,360.77
4. Step 4: Simplify right side
   52,234.61x = 2,044,294,783.77
5. Step 5: Solve for x
   x = 2,044,294,783.77/52,234.61
6. Step 6: Final answer
   x = 39,136.79