Finding the Fourth Proportional to 12,376.39, 17,075.69 and 7,591.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,376.39 : 17,075.69 = 7,591.42 : x
2. Step 2: Convert to fraction form
   12,376.39/17,075.69 = 7,591.42/x
3. Step 3: Cross multiply
   12,376.39x = 17,075.69 × 7,591.42
4. Step 4: Simplify right side
   12,376.39x = 129,628,691.89
5. Step 5: Solve for x
   x = 129,628,691.89/12,376.39
6. Step 6: Final answer
   x = 10,473.87