Finding the Fourth Proportional to 28,071.24, 42,114.51 and 9,354.30

Step by Step Solution

1. Step 1: Write the proportion equation
   28,071.24 : 42,114.51 = 9,354.30 : x
2. Step 2: Convert to fraction form
   28,071.24/42,114.51 = 9,354.30/x
3. Step 3: Cross multiply
   28,071.24x = 42,114.51 × 9,354.30
4. Step 4: Simplify right side
   28,071.24x = 393,951,760.89
5. Step 5: Solve for x
   x = 393,951,760.89/28,071.24
6. Step 6: Final answer
   x = 14,034.00