Finding the Fourth Proportional to 10,287.42, 15,429.96 and 2,892.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,287.42 : 15,429.96 = 2,892.18 : x
2. Step 2: Convert to fraction form
   10,287.42/15,429.96 = 2,892.18/x
3. Step 3: Cross multiply
   10,287.42x = 15,429.96 × 2,892.18
4. Step 4: Simplify right side
   10,287.42x = 44,626,221.71
5. Step 5: Solve for x
   x = 44,626,221.71/10,287.42
6. Step 6: Final answer
   x = 4,337.94