Finding the Fourth Proportional to 52,637.33, 72,639.36 and 28,764.15

Step by Step Solution

1. Step 1: Write the proportion equation
   52,637.33 : 72,639.36 = 28,764.15 : x
2. Step 2: Convert to fraction form
   52,637.33/72,639.36 = 28,764.15/x
3. Step 3: Cross multiply
   52,637.33x = 72,639.36 × 28,764.15
4. Step 4: Simplify right side
   52,637.33x = 2,089,409,446.94
5. Step 5: Solve for x
   x = 2,089,409,446.94/52,637.33
6. Step 6: Final answer
   x = 39,694.45