Finding the Fourth Proportional to 20,426.86, 30,636.62 and 5,632.12

Step by Step Solution

1. Step 1: Write the proportion equation
   20,426.86 : 30,636.62 = 5,632.12 : x
2. Step 2: Convert to fraction form
   20,426.86/30,636.62 = 5,632.12/x
3. Step 3: Cross multiply
   20,426.86x = 30,636.62 × 5,632.12
4. Step 4: Simplify right side
   20,426.86x = 172,549,120.23
5. Step 5: Solve for x
   x = 172,549,120.23/20,426.86
6. Step 6: Final answer
   x = 8,447.17