Finding the Fourth Proportional to 12,939.53, 19,404.52 and 4,617.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,939.53 : 19,404.52 = 4,617.32 : x
2. Step 2: Convert to fraction form
   12,939.53/19,404.52 = 4,617.32/x
3. Step 3: Cross multiply
   12,939.53x = 19,404.52 × 4,617.32
4. Step 4: Simplify right side
   12,939.53x = 89,596,758.18
5. Step 5: Solve for x
   x = 89,596,758.18/12,939.53
6. Step 6: Final answer
   x = 6,924.27