Finding the Fourth Proportional to 10,287.52, 15,423.72 and 5,092.18

Step by Step Solution

1. Step 1: Write the proportion equation
   10,287.52 : 15,423.72 = 5,092.18 : x
2. Step 2: Convert to fraction form
   10,287.52/15,423.72 = 5,092.18/x
3. Step 3: Cross multiply
   10,287.52x = 15,423.72 × 5,092.18
4. Step 4: Simplify right side
   10,287.52x = 78,540,358.51
5. Step 5: Solve for x
   x = 78,540,358.51/10,287.52
6. Step 6: Final answer
   x = 7,634.53