Finding the Fourth Proportional to 10,113.09, 15,158.67 and 5,175.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,113.09 : 15,158.67 = 5,175.96 : x
2. Step 2: Convert to fraction form
   10,113.09/15,158.67 = 5,175.96/x
3. Step 3: Cross multiply
   10,113.09x = 15,158.67 × 5,175.96
4. Step 4: Simplify right side
   10,113.09x = 78,460,669.57
5. Step 5: Solve for x
   x = 78,460,669.57/10,113.09
6. Step 6: Final answer
   x = 7,758.33