Finding the Fourth Proportional to 52,653.83, 72,662.32 and 28,780.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,653.83 : 72,662.32 = 28,780.50 : x
2. Step 2: Convert to fraction form
   52,653.83/72,662.32 = 28,780.50/x
3. Step 3: Cross multiply
   52,653.83x = 72,662.32 × 28,780.50
4. Step 4: Simplify right side
   52,653.83x = 2,091,257,900.76
5. Step 5: Solve for x
   x = 2,091,257,900.76/52,653.83
6. Step 6: Final answer
   x = 39,717.11