Finding the Fourth Proportional to 8,460.42, 11,673.72 and 5,314.78

Step by Step Solution

1. Step 1: Write the proportion equation
   8,460.42 : 11,673.72 = 5,314.78 : x
2. Step 2: Convert to fraction form
   8,460.42/11,673.72 = 5,314.78/x
3. Step 3: Cross multiply
   8,460.42x = 11,673.72 × 5,314.78
4. Step 4: Simplify right side
   8,460.42x = 62,043,268.17
5. Step 5: Solve for x
   x = 62,043,268.17/8,460.42
6. Step 6: Final answer
   x = 7,333.36