Finding the Fourth Proportional to 9,103.57, 12,562.60 and 5,124.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,103.57 : 12,562.60 = 5,124.45 : x
2. Step 2: Convert to fraction form
   9,103.57/12,562.60 = 5,124.45/x
3. Step 3: Cross multiply
   9,103.57x = 12,562.60 × 5,124.45
4. Step 4: Simplify right side
   9,103.57x = 64,376,415.57
5. Step 5: Solve for x
   x = 64,376,415.57/9,103.57
6. Step 6: Final answer
   x = 7,071.56