Finding the Fourth Proportional to 12,756.39, 17,598.74 and 7,377.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,756.39 : 17,598.74 = 7,377.82 : x
2. Step 2: Convert to fraction form
   12,756.39/17,598.74 = 7,377.82/x
3. Step 3: Cross multiply
   12,756.39x = 17,598.74 × 7,377.82
4. Step 4: Simplify right side
   12,756.39x = 129,840,255.06
5. Step 5: Solve for x
   x = 129,840,255.06/12,756.39
6. Step 6: Final answer
   x = 10,178.45