Finding the Fourth Proportional to 28,213.65, 42,322.59 and 9,493.74

Step by Step Solution

1. Step 1: Write the proportion equation
   28,213.65 : 42,322.59 = 9,493.74 : x
2. Step 2: Convert to fraction form
   28,213.65/42,322.59 = 9,493.74/x
3. Step 3: Cross multiply
   28,213.65x = 42,322.59 × 9,493.74
4. Step 4: Simplify right side
   28,213.65x = 401,799,665.59
5. Step 5: Solve for x
   x = 401,799,665.59/28,213.65
6. Step 6: Final answer
   x = 14,241.32