Finding the Fourth Proportional to 9,103.45, 12,562.62 and 5,124.55

Step by Step Solution

1. Step 1: Write the proportion equation
   9,103.45 : 12,562.62 = 5,124.55 : x
2. Step 2: Convert to fraction form
   9,103.45/12,562.62 = 5,124.55/x
3. Step 3: Cross multiply
   9,103.45x = 12,562.62 × 5,124.55
4. Step 4: Simplify right side
   9,103.45x = 64,377,774.32
5. Step 5: Solve for x
   x = 64,377,774.32/9,103.45
6. Step 6: Final answer
   x = 7,071.80