Finding the Fourth Proportional to 52,559.61, 72,533.82 and 28,687.83

Step by Step Solution

1. Step 1: Write the proportion equation
   52,559.61 : 72,533.82 = 28,687.83 : x
2. Step 2: Convert to fraction form
   52,559.61/72,533.82 = 28,687.83/x
3. Step 3: Cross multiply
   52,559.61x = 72,533.82 × 28,687.83
4. Step 4: Simplify right side
   52,559.61x = 2,080,837,897.41
5. Step 5: Solve for x
   x = 2,080,837,897.41/52,559.61
6. Step 6: Final answer
   x = 39,590.06