Finding the Fourth Proportional to 52,633.98, 72,635.40 and 28,760.65

Step by Step Solution

1. Step 1: Write the proportion equation
   52,633.98 : 72,635.40 = 28,760.65 : x
2. Step 2: Convert to fraction form
   52,633.98/72,635.40 = 28,760.65/x
3. Step 3: Cross multiply
   52,633.98x = 72,635.40 × 28,760.65
4. Step 4: Simplify right side
   52,633.98x = 2,089,041,317.01
5. Step 5: Solve for x
   x = 2,089,041,317.01/52,633.98
6. Step 6: Final answer
   x = 39,689.97