Finding the Fourth Proportional to 28,495.67, 42,755.81 and 15,345.42

Step by Step Solution

1. Step 1: Write the proportion equation
   28,495.67 : 42,755.81 = 15,345.42 : x
2. Step 2: Convert to fraction form
   28,495.67/42,755.81 = 15,345.42/x
3. Step 3: Cross multiply
   28,495.67x = 42,755.81 × 15,345.42
4. Step 4: Simplify right side
   28,495.67x = 656,105,861.89
5. Step 5: Solve for x
   x = 656,105,861.89/28,495.67
6. Step 6: Final answer
   x = 23,024.76