Finding the Fourth Proportional to 28,329.02, 42,493.50 and 13,492.94

Step by Step Solution

1. Step 1: Write the proportion equation
   28,329.02 : 42,493.50 = 13,492.94 : x
2. Step 2: Convert to fraction form
   28,329.02/42,493.50 = 13,492.94/x
3. Step 3: Cross multiply
   28,329.02x = 42,493.50 × 13,492.94
4. Step 4: Simplify right side
   28,329.02x = 573,362,245.89
5. Step 5: Solve for x
   x = 573,362,245.89/28,329.02
6. Step 6: Final answer
   x = 20,239.40