Finding the Fourth Proportional to 13,476.38, 18,597.62 and 7,734.78

Step by Step Solution

1. Step 1: Write the proportion equation
   13,476.38 : 18,597.62 = 7,734.78 : x
2. Step 2: Convert to fraction form
   13,476.38/18,597.62 = 7,734.78/x
3. Step 3: Cross multiply
   13,476.38x = 18,597.62 × 7,734.78
4. Step 4: Simplify right side
   13,476.38x = 143,848,499.22
5. Step 5: Solve for x
   x = 143,848,499.22/13,476.38
6. Step 6: Final answer
   x = 10,674.12