Finding the Fourth Proportional to 28,329, 42,493.48 and 13,492.96

Step by Step Solution

1. Step 1: Write the proportion equation
   28,329 : 42,493.48 = 13,492.96 : x
2. Step 2: Convert to fraction form
   28,329/42,493.48 = 13,492.96/x
3. Step 3: Cross multiply
   28,329x = 42,493.48 × 13,492.96
4. Step 4: Simplify right side
   28,329x = 573,362,825.90
5. Step 5: Solve for x
   x = 573,362,825.90/28,329
6. Step 6: Final answer
   x = 20,239.43