Finding the Fourth Proportional to 10,084.69, 15,113.16 and 5,143.93

Step by Step Solution

1. Step 1: Write the proportion equation
   10,084.69 : 15,113.16 = 5,143.93 : x
2. Step 2: Convert to fraction form
   10,084.69/15,113.16 = 5,143.93/x
3. Step 3: Cross multiply
   10,084.69x = 15,113.16 × 5,143.93
4. Step 4: Simplify right side
   10,084.69x = 77,741,037.12
5. Step 5: Solve for x
   x = 77,741,037.12/10,084.69
6. Step 6: Final answer
   x = 7,708.82