Finding the Fourth Proportional to 32,293.86, 48,449.96 and 12,578.05

Step by Step Solution

1. Step 1: Write the proportion equation
   32,293.86 : 48,449.96 = 12,578.05 : x
2. Step 2: Convert to fraction form
   32,293.86/48,449.96 = 12,578.05/x
3. Step 3: Cross multiply
   32,293.86x = 48,449.96 × 12,578.05
4. Step 4: Simplify right side
   32,293.86x = 609,406,019.38
5. Step 5: Solve for x
   x = 609,406,019.38/32,293.86
6. Step 6: Final answer
   x = 18,870.65