Finding the Fourth Proportional to 28,333, 42,499.48 and 13,496.96

Step by Step Solution

1. Step 1: Write the proportion equation
   28,333 : 42,499.48 = 13,496.96 : x
2. Step 2: Convert to fraction form
   28,333/42,499.48 = 13,496.96/x
3. Step 3: Cross multiply
   28,333x = 42,499.48 × 13,496.96
4. Step 4: Simplify right side
   28,333x = 573,613,781.58
5. Step 5: Solve for x
   x = 573,613,781.58/28,333
6. Step 6: Final answer
   x = 20,245.43