Finding the Fourth Proportional to 52,776.50, 72,832.37 and 28,905.39

Step by Step Solution

1. Step 1: Write the proportion equation
   52,776.50 : 72,832.37 = 28,905.39 : x
2. Step 2: Convert to fraction form
   52,776.50/72,832.37 = 28,905.39/x
3. Step 3: Cross multiply
   52,776.50x = 72,832.37 × 28,905.39
4. Step 4: Simplify right side
   52,776.50x = 2,105,247,914.95
5. Step 5: Solve for x
   x = 2,105,247,914.95/52,776.50
6. Step 6: Final answer
   x = 39,889.88