Finding the Fourth Proportional to 10,103.67, 15,155.88 and 5,167.53

Step by Step Solution

1. Step 1: Write the proportion equation
   10,103.67 : 15,155.88 = 5,167.53 : x
2. Step 2: Convert to fraction form
   10,103.67/15,155.88 = 5,167.53/x
3. Step 3: Cross multiply
   10,103.67x = 15,155.88 × 5,167.53
4. Step 4: Simplify right side
   10,103.67x = 78,318,445.20
5. Step 5: Solve for x
   x = 78,318,445.20/10,103.67
6. Step 6: Final answer
   x = 7,751.48