Finding the Fourth Proportional to 28,636.76, 39,518.60 and 16,061.52

Step by Step Solution

1. Step 1: Write the proportion equation
   28,636.76 : 39,518.60 = 16,061.52 : x
2. Step 2: Convert to fraction form
   28,636.76/39,518.60 = 16,061.52/x
3. Step 3: Cross multiply
   28,636.76x = 39,518.60 × 16,061.52
4. Step 4: Simplify right side
   28,636.76x = 634,728,784.27
5. Step 5: Solve for x
   x = 634,728,784.27/28,636.76
6. Step 6: Final answer
   x = 22,164.83