Finding the Fourth Proportional to 52,633.58, 72,639.42 and 28,763.87

Step by Step Solution

1. Step 1: Write the proportion equation
   52,633.58 : 72,639.42 = 28,763.87 : x
2. Step 2: Convert to fraction form
   52,633.58/72,639.42 = 28,763.87/x
3. Step 3: Cross multiply
   52,633.58x = 72,639.42 × 28,763.87
4. Step 4: Simplify right side
   52,633.58x = 2,089,390,833.76
5. Step 5: Solve for x
   x = 2,089,390,833.76/52,633.58
6. Step 6: Final answer
   x = 39,696.92