Finding the Fourth Proportional to 12,624.42, 17,421.74 and 7,591.53

Step by Step Solution

1. Step 1: Write the proportion equation
   12,624.42 : 17,421.74 = 7,591.53 : x
2. Step 2: Convert to fraction form
   12,624.42/17,421.74 = 7,591.53/x
3. Step 3: Cross multiply
   12,624.42x = 17,421.74 × 7,591.53
4. Step 4: Simplify right side
   12,624.42x = 132,257,661.86
5. Step 5: Solve for x
   x = 132,257,661.86/12,624.42
6. Step 6: Final answer
   x = 10,476.34