Finding the Fourth Proportional to 10,072.76, 15,104.61 and 5,392.04

Step by Step Solution

1. Step 1: Write the proportion equation
   10,072.76 : 15,104.61 = 5,392.04 : x
2. Step 2: Convert to fraction form
   10,072.76/15,104.61 = 5,392.04/x
3. Step 3: Cross multiply
   10,072.76x = 15,104.61 × 5,392.04
4. Step 4: Simplify right side
   10,072.76x = 81,444,585.78
5. Step 5: Solve for x
   x = 81,444,585.78/10,072.76
6. Step 6: Final answer
   x = 8,085.63