Finding the Fourth Proportional to 28,327.50, 42,492.15 and 8,606.23

Step by Step Solution

1. Step 1: Write the proportion equation
   28,327.50 : 42,492.15 = 8,606.23 : x
2. Step 2: Convert to fraction form
   28,327.50/42,492.15 = 8,606.23/x
3. Step 3: Cross multiply
   28,327.50x = 42,492.15 × 8,606.23
4. Step 4: Simplify right side
   28,327.50x = 365,697,109.86
5. Step 5: Solve for x
   x = 365,697,109.86/28,327.50
6. Step 6: Final answer
   x = 12,909.61