Finding the Fourth Proportional to 9,124.03, 12,591.59 and 5,145.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,124.03 : 12,591.59 = 5,145.06 : x
2. Step 2: Convert to fraction form
   9,124.03/12,591.59 = 5,145.06/x
3. Step 3: Cross multiply
   9,124.03x = 12,591.59 × 5,145.06
4. Step 4: Simplify right side
   9,124.03x = 64,784,515.54
5. Step 5: Solve for x
   x = 64,784,515.54/9,124.03
6. Step 6: Final answer
   x = 7,100.42